Home / 5,318.15-7,338.03-3,079.85

Finding the Fourth Proportional to 5,318.15, 7,338.03 and 3,079.85

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Solution

The fourth proportional to 5,318.15, 7,338.03 and 3,079.85 is: 4,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.15 : 7,338.03 = 3,079.85 : x
  2. Step 2: Convert to fraction form
    5,318.15/7,338.03 = 3,079.85/x
  3. Step 3: Cross multiply
    5,318.15x = 7,338.03 × 3,079.85
  4. Step 4: Simplify right side
    5,318.15x = 22,599,995.01
  5. Step 5: Solve for x
    x = 22,599,995.01/5,318.15
  6. Step 6: Final answer
    x = 4,249.60

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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.