Home / 7,747.62-10,691.49-4,210.74

Finding the Fourth Proportional to 7,747.62, 10,691.49 and 4,210.74

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Solution

The fourth proportional to 7,747.62, 10,691.49 and 4,210.74 is: 5,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.62 : 10,691.49 = 4,210.74 : x
  2. Step 2: Convert to fraction form
    7,747.62/10,691.49 = 4,210.74/x
  3. Step 3: Cross multiply
    7,747.62x = 10,691.49 × 4,210.74
  4. Step 4: Simplify right side
    7,747.62x = 45,019,084.60
  5. Step 5: Solve for x
    x = 45,019,084.60/7,747.62
  6. Step 6: Final answer
    x = 5,810.70

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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.