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Finding the Fourth Proportional to 2,553.02, 3,829.53 and 887.20

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Solution

The fourth proportional to 2,553.02, 3,829.53 and 887.20 is: 1,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.02 : 3,829.53 = 887.20 : x
  2. Step 2: Convert to fraction form
    2,553.02/3,829.53 = 887.20/x
  3. Step 3: Cross multiply
    2,553.02x = 3,829.53 × 887.20
  4. Step 4: Simplify right side
    2,553.02x = 3,397,569.32
  5. Step 5: Solve for x
    x = 3,397,569.32/2,553.02
  6. Step 6: Final answer
    x = 1,330.80

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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.