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Finding the Fourth Proportional to 2,197.95, 3,294.74 and 1,098.96

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Solution

The fourth proportional to 2,197.95, 3,294.74 and 1,098.96 is: 1,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.95 : 3,294.74 = 1,098.96 : x
  2. Step 2: Convert to fraction form
    2,197.95/3,294.74 = 1,098.96/x
  3. Step 3: Cross multiply
    2,197.95x = 3,294.74 × 1,098.96
  4. Step 4: Simplify right side
    2,197.95x = 3,620,781.98
  5. Step 5: Solve for x
    x = 3,620,781.98/2,197.95
  6. Step 6: Final answer
    x = 1,647.35

Related Problems

Find fourth proportional to 1,098.98, 1,647.37 and 549.48
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.