Home / 5,428.38-7,491.33-3,038.31

Finding the Fourth Proportional to 5,428.38, 7,491.33 and 3,038.31

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Solution

The fourth proportional to 5,428.38, 7,491.33 and 3,038.31 is: 4,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.38 : 7,491.33 = 3,038.31 : x
  2. Step 2: Convert to fraction form
    5,428.38/7,491.33 = 3,038.31/x
  3. Step 3: Cross multiply
    5,428.38x = 7,491.33 × 3,038.31
  4. Step 4: Simplify right side
    5,428.38x = 22,760,982.85
  5. Step 5: Solve for x
    x = 22,760,982.85/5,428.38
  6. Step 6: Final answer
    x = 4,192.96

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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.