Home / 7,527.78-11,291.67-3,142.85

Finding the Fourth Proportional to 7,527.78, 11,291.67 and 3,142.85

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Solution

The fourth proportional to 7,527.78, 11,291.67 and 3,142.85 is: 4,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.78 : 11,291.67 = 3,142.85 : x
  2. Step 2: Convert to fraction form
    7,527.78/11,291.67 = 3,142.85/x
  3. Step 3: Cross multiply
    7,527.78x = 11,291.67 × 3,142.85
  4. Step 4: Simplify right side
    7,527.78x = 35,488,025.06
  5. Step 5: Solve for x
    x = 35,488,025.06/7,527.78
  6. Step 6: Final answer
    x = 4,714.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.