Home / 5,139.91-7,708.65-2,364.85

Finding the Fourth Proportional to 5,139.91, 7,708.65 and 2,364.85

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Solution

The fourth proportional to 5,139.91, 7,708.65 and 2,364.85 is: 3,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.91 : 7,708.65 = 2,364.85 : x
  2. Step 2: Convert to fraction form
    5,139.91/7,708.65 = 2,364.85/x
  3. Step 3: Cross multiply
    5,139.91x = 7,708.65 × 2,364.85
  4. Step 4: Simplify right side
    5,139.91x = 18,229,800.95
  5. Step 5: Solve for x
    x = 18,229,800.95/5,139.91
  6. Step 6: Final answer
    x = 3,546.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.