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Finding the Fourth Proportional to 3,174.77, 4,381.21 and 1,848.90

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Solution

The fourth proportional to 3,174.77, 4,381.21 and 1,848.90 is: 2,551.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.77 : 4,381.21 = 1,848.90 : x
  2. Step 2: Convert to fraction form
    3,174.77/4,381.21 = 1,848.90/x
  3. Step 3: Cross multiply
    3,174.77x = 4,381.21 × 1,848.90
  4. Step 4: Simplify right side
    3,174.77x = 8,100,414.55
  5. Step 5: Solve for x
    x = 8,100,414.55/3,174.77
  6. Step 6: Final answer
    x = 2,551.50

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.