Home / 5,329.30-8,002.35-3,139.70

Finding the Fourth Proportional to 5,329.30, 8,002.35 and 3,139.70

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Solution

The fourth proportional to 5,329.30, 8,002.35 and 3,139.70 is: 4,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.30 : 8,002.35 = 3,139.70 : x
  2. Step 2: Convert to fraction form
    5,329.30/8,002.35 = 3,139.70/x
  3. Step 3: Cross multiply
    5,329.30x = 8,002.35 × 3,139.70
  4. Step 4: Simplify right side
    5,329.30x = 25,124,978.30
  5. Step 5: Solve for x
    x = 25,124,978.30/5,329.30
  6. Step 6: Final answer
    x = 4,714.50

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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.