Home / 5,389.30-8,079.15-3,195.70

Finding the Fourth Proportional to 5,389.30, 8,079.15 and 3,195.70

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Solution

The fourth proportional to 5,389.30, 8,079.15 and 3,195.70 is: 4,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.30 : 8,079.15 = 3,195.70 : x
  2. Step 2: Convert to fraction form
    5,389.30/8,079.15 = 3,195.70/x
  3. Step 3: Cross multiply
    5,389.30x = 8,079.15 × 3,195.70
  4. Step 4: Simplify right side
    5,389.30x = 25,818,539.66
  5. Step 5: Solve for x
    x = 25,818,539.66/5,389.30
  6. Step 6: Final answer
    x = 4,790.70

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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.