Home / 7,742.38-10,684.72-4,555.92

Finding the Fourth Proportional to 7,742.38, 10,684.72 and 4,555.92

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Solution

The fourth proportional to 7,742.38, 10,684.72 and 4,555.92 is: 6,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.38 : 10,684.72 = 4,555.92 : x
  2. Step 2: Convert to fraction form
    7,742.38/10,684.72 = 4,555.92/x
  3. Step 3: Cross multiply
    7,742.38x = 10,684.72 × 4,555.92
  4. Step 4: Simplify right side
    7,742.38x = 48,678,729.54
  5. Step 5: Solve for x
    x = 48,678,729.54/7,742.38
  6. Step 6: Final answer
    x = 6,287.31

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Double scale
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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.