Home / 5,551.62-7,666.29-5,217.90

Finding the Fourth Proportional to 5,551.62, 7,666.29 and 5,217.90

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Solution

The fourth proportional to 5,551.62, 7,666.29 and 5,217.90 is: 7,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.62 : 7,666.29 = 5,217.90 : x
  2. Step 2: Convert to fraction form
    5,551.62/7,666.29 = 5,217.90/x
  3. Step 3: Cross multiply
    5,551.62x = 7,666.29 × 5,217.90
  4. Step 4: Simplify right side
    5,551.62x = 40,001,934.59
  5. Step 5: Solve for x
    x = 40,001,934.59/5,551.62
  6. Step 6: Final answer
    x = 7,205.45

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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.