Home / 5,428.52-7,491.72-3,038.71

Finding the Fourth Proportional to 5,428.52, 7,491.72 and 3,038.71

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Solution

The fourth proportional to 5,428.52, 7,491.72 and 3,038.71 is: 4,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.52 : 7,491.72 = 3,038.71 : x
  2. Step 2: Convert to fraction form
    5,428.52/7,491.72 = 3,038.71/x
  3. Step 3: Cross multiply
    5,428.52x = 7,491.72 × 3,038.71
  4. Step 4: Simplify right side
    5,428.52x = 22,765,149.29
  5. Step 5: Solve for x
    x = 22,765,149.29/5,428.52
  6. Step 6: Final answer
    x = 4,193.62

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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.