Home / 5,315.38-7,338.54-3,427.90

Finding the Fourth Proportional to 5,315.38, 7,338.54 and 3,427.90

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Solution

The fourth proportional to 5,315.38, 7,338.54 and 3,427.90 is: 4,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.38 : 7,338.54 = 3,427.90 : x
  2. Step 2: Convert to fraction form
    5,315.38/7,338.54 = 3,427.90/x
  3. Step 3: Cross multiply
    5,315.38x = 7,338.54 × 3,427.90
  4. Step 4: Simplify right side
    5,315.38x = 25,155,781.27
  5. Step 5: Solve for x
    x = 25,155,781.27/5,315.38
  6. Step 6: Final answer
    x = 4,732.64

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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.