Home / 7,764.39-10,714.87-4,227.61

Finding the Fourth Proportional to 7,764.39, 10,714.87 and 4,227.61

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Solution

The fourth proportional to 7,764.39, 10,714.87 and 4,227.61 is: 5,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.39 : 10,714.87 = 4,227.61 : x
  2. Step 2: Convert to fraction form
    7,764.39/10,714.87 = 4,227.61/x
  3. Step 3: Cross multiply
    7,764.39x = 10,714.87 × 4,227.61
  4. Step 4: Simplify right side
    7,764.39x = 45,298,291.56
  5. Step 5: Solve for x
    x = 45,298,291.56/7,764.39
  6. Step 6: Final answer
    x = 5,834.11

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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.