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Finding the Fourth Proportional to 1,437.53, 2,157.03 and 616.49

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Solution

The fourth proportional to 1,437.53, 2,157.03 and 616.49 is: 925.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.53 : 2,157.03 = 616.49 : x
  2. Step 2: Convert to fraction form
    1,437.53/2,157.03 = 616.49/x
  3. Step 3: Cross multiply
    1,437.53x = 2,157.03 × 616.49
  4. Step 4: Simplify right side
    1,437.53x = 1,329,787.42
  5. Step 5: Solve for x
    x = 1,329,787.42/1,437.53
  6. Step 6: Final answer
    x = 925.05

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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.