Home / 5,711.40-7,881.58-3,227.40

Finding the Fourth Proportional to 5,711.40, 7,881.58 and 3,227.40

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Solution

The fourth proportional to 5,711.40, 7,881.58 and 3,227.40 is: 4,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.40 : 7,881.58 = 3,227.40 : x
  2. Step 2: Convert to fraction form
    5,711.40/7,881.58 = 3,227.40/x
  3. Step 3: Cross multiply
    5,711.40x = 7,881.58 × 3,227.40
  4. Step 4: Simplify right side
    5,711.40x = 25,437,011.29
  5. Step 5: Solve for x
    x = 25,437,011.29/5,711.40
  6. Step 6: Final answer
    x = 4,453.73

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Half scale
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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.