Home / 5,127.60-7,077.03-3,240.09

Finding the Fourth Proportional to 5,127.60, 7,077.03 and 3,240.09

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Solution

The fourth proportional to 5,127.60, 7,077.03 and 3,240.09 is: 4,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.60 : 7,077.03 = 3,240.09 : x
  2. Step 2: Convert to fraction form
    5,127.60/7,077.03 = 3,240.09/x
  3. Step 3: Cross multiply
    5,127.60x = 7,077.03 × 3,240.09
  4. Step 4: Simplify right side
    5,127.60x = 22,930,214.13
  5. Step 5: Solve for x
    x = 22,930,214.13/5,127.60
  6. Step 6: Final answer
    x = 4,471.92

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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.