Home / 5,317.38-7,338.40-3,079.29

Finding the Fourth Proportional to 5,317.38, 7,338.40 and 3,079.29

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Solution

The fourth proportional to 5,317.38, 7,338.40 and 3,079.29 is: 4,249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.38 : 7,338.40 = 3,079.29 : x
  2. Step 2: Convert to fraction form
    5,317.38/7,338.40 = 3,079.29/x
  3. Step 3: Cross multiply
    5,317.38x = 7,338.40 × 3,079.29
  4. Step 4: Simplify right side
    5,317.38x = 22,597,065.59
  5. Step 5: Solve for x
    x = 22,597,065.59/5,317.38
  6. Step 6: Final answer
    x = 4,249.66

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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.