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Finding the Fourth Proportional to 5,609.68, 7,737.96 and 3,617.08

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Solution

The fourth proportional to 5,609.68, 7,737.96 and 3,617.08 is: 4,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.68 : 7,737.96 = 3,617.08 : x
  2. Step 2: Convert to fraction form
    5,609.68/7,737.96 = 3,617.08/x
  3. Step 3: Cross multiply
    5,609.68x = 7,737.96 × 3,617.08
  4. Step 4: Simplify right side
    5,609.68x = 27,988,820.36
  5. Step 5: Solve for x
    x = 27,988,820.36/5,609.68
  6. Step 6: Final answer
    x = 4,989.38

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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.