Home / 7,329.87-10,115.16-3,972.59

Finding the Fourth Proportional to 7,329.87, 10,115.16 and 3,972.59

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Solution

The fourth proportional to 7,329.87, 10,115.16 and 3,972.59 is: 5,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.87 : 10,115.16 = 3,972.59 : x
  2. Step 2: Convert to fraction form
    7,329.87/10,115.16 = 3,972.59/x
  3. Step 3: Cross multiply
    7,329.87x = 10,115.16 × 3,972.59
  4. Step 4: Simplify right side
    7,329.87x = 40,183,426.79
  5. Step 5: Solve for x
    x = 40,183,426.79/7,329.87
  6. Step 6: Final answer
    x = 5,482.15

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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.