Home / 5,169.71-7,134.35-2,931.53

Finding the Fourth Proportional to 5,169.71, 7,134.35 and 2,931.53

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Solution

The fourth proportional to 5,169.71, 7,134.35 and 2,931.53 is: 4,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.71 : 7,134.35 = 2,931.53 : x
  2. Step 2: Convert to fraction form
    5,169.71/7,134.35 = 2,931.53/x
  3. Step 3: Cross multiply
    5,169.71x = 7,134.35 × 2,931.53
  4. Step 4: Simplify right side
    5,169.71x = 20,914,510.73
  5. Step 5: Solve for x
    x = 20,914,510.73/5,169.71
  6. Step 6: Final answer
    x = 4,045.59

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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.