Home / 7,329.72-10,115.06-3,972.53

Finding the Fourth Proportional to 7,329.72, 10,115.06 and 3,972.53

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Solution

The fourth proportional to 7,329.72, 10,115.06 and 3,972.53 is: 5,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.72 : 10,115.06 = 3,972.53 : x
  2. Step 2: Convert to fraction form
    7,329.72/10,115.06 = 3,972.53/x
  3. Step 3: Cross multiply
    7,329.72x = 10,115.06 × 3,972.53
  4. Step 4: Simplify right side
    7,329.72x = 40,182,308.86
  5. Step 5: Solve for x
    x = 40,182,308.86/7,329.72
  6. Step 6: Final answer
    x = 5,482.11

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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.