Home / 7,081.53-9,772.15-3,937.65

Finding the Fourth Proportional to 7,081.53, 9,772.15 and 3,937.65

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Solution

The fourth proportional to 7,081.53, 9,772.15 and 3,937.65 is: 5,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.53 : 9,772.15 = 3,937.65 : x
  2. Step 2: Convert to fraction form
    7,081.53/9,772.15 = 3,937.65/x
  3. Step 3: Cross multiply
    7,081.53x = 9,772.15 × 3,937.65
  4. Step 4: Simplify right side
    7,081.53x = 38,479,306.45
  5. Step 5: Solve for x
    x = 38,479,306.45/7,081.53
  6. Step 6: Final answer
    x = 5,433.76

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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.