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Finding the Fourth Proportional to 2,188.88, 3,017.03 and 1,549.99

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Solution

The fourth proportional to 2,188.88, 3,017.03 and 1,549.99 is: 2,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.88 : 3,017.03 = 1,549.99 : x
  2. Step 2: Convert to fraction form
    2,188.88/3,017.03 = 1,549.99/x
  3. Step 3: Cross multiply
    2,188.88x = 3,017.03 × 1,549.99
  4. Step 4: Simplify right side
    2,188.88x = 4,676,354.10
  5. Step 5: Solve for x
    x = 4,676,354.10/2,188.88
  6. Step 6: Final answer
    x = 2,136.41

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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.