Home / 5,248.38-7,242.66-2,890.46

Finding the Fourth Proportional to 5,248.38, 7,242.66 and 2,890.46

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Solution

The fourth proportional to 5,248.38, 7,242.66 and 2,890.46 is: 3,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.38 : 7,242.66 = 2,890.46 : x
  2. Step 2: Convert to fraction form
    5,248.38/7,242.66 = 2,890.46/x
  3. Step 3: Cross multiply
    5,248.38x = 7,242.66 × 2,890.46
  4. Step 4: Simplify right side
    5,248.38x = 20,934,619.02
  5. Step 5: Solve for x
    x = 20,934,619.02/5,248.38
  6. Step 6: Final answer
    x = 3,988.78

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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.