Home / 7,747.20-10,691.07-4,390.65

Finding the Fourth Proportional to 7,747.20, 10,691.07 and 4,390.65

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Solution

The fourth proportional to 7,747.20, 10,691.07 and 4,390.65 is: 6,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.20 : 10,691.07 = 4,390.65 : x
  2. Step 2: Convert to fraction form
    7,747.20/10,691.07 = 4,390.65/x
  3. Step 3: Cross multiply
    7,747.20x = 10,691.07 × 4,390.65
  4. Step 4: Simplify right side
    7,747.20x = 46,940,746.50
  5. Step 5: Solve for x
    x = 46,940,746.50/7,747.20
  6. Step 6: Final answer
    x = 6,059.06

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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.