Home / 5,497.71-7,586.76-3,139.80

Finding the Fourth Proportional to 5,497.71, 7,586.76 and 3,139.80

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Solution

The fourth proportional to 5,497.71, 7,586.76 and 3,139.80 is: 4,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,497.71 : 7,586.76 = 3,139.80 : x
  2. Step 2: Convert to fraction form
    5,497.71/7,586.76 = 3,139.80/x
  3. Step 3: Cross multiply
    5,497.71x = 7,586.76 × 3,139.80
  4. Step 4: Simplify right side
    5,497.71x = 23,820,909.05
  5. Step 5: Solve for x
    x = 23,820,909.05/5,497.71
  6. Step 6: Final answer
    x = 4,332.88

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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.