Home / 5,429.30-8,139.15-3,235.70

Finding the Fourth Proportional to 5,429.30, 8,139.15 and 3,235.70

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Solution

The fourth proportional to 5,429.30, 8,139.15 and 3,235.70 is: 4,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.30 : 8,139.15 = 3,235.70 : x
  2. Step 2: Convert to fraction form
    5,429.30/8,139.15 = 3,235.70/x
  3. Step 3: Cross multiply
    5,429.30x = 8,139.15 × 3,235.70
  4. Step 4: Simplify right side
    5,429.30x = 26,335,847.66
  5. Step 5: Solve for x
    x = 26,335,847.66/5,429.30
  6. Step 6: Final answer
    x = 4,850.69

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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.