Home / 5,428.76-8,139.50-2,833.52

Finding the Fourth Proportional to 5,428.76, 8,139.50 and 2,833.52

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Solution

The fourth proportional to 5,428.76, 8,139.50 and 2,833.52 is: 4,248.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.76 : 8,139.50 = 2,833.52 : x
  2. Step 2: Convert to fraction form
    5,428.76/8,139.50 = 2,833.52/x
  3. Step 3: Cross multiply
    5,428.76x = 8,139.50 × 2,833.52
  4. Step 4: Simplify right side
    5,428.76x = 23,063,436.04
  5. Step 5: Solve for x
    x = 23,063,436.04/5,428.76
  6. Step 6: Final answer
    x = 4,248.38

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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.