Home / 5,909.20-8,863.80-5,107.30

Finding the Fourth Proportional to 5,909.20, 8,863.80 and 5,107.30

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Solution

The fourth proportional to 5,909.20, 8,863.80 and 5,107.30 is: 7,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.20 : 8,863.80 = 5,107.30 : x
  2. Step 2: Convert to fraction form
    5,909.20/8,863.80 = 5,107.30/x
  3. Step 3: Cross multiply
    5,909.20x = 8,863.80 × 5,107.30
  4. Step 4: Simplify right side
    5,909.20x = 45,270,085.74
  5. Step 5: Solve for x
    x = 45,270,085.74/5,909.20
  6. Step 6: Final answer
    x = 7,660.95

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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.