Home / 2,080.24-3,118.20-847.12

Finding the Fourth Proportional to 2,080.24, 3,118.20 and 847.12

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Solution

The fourth proportional to 2,080.24, 3,118.20 and 847.12 is: 1,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.24 : 3,118.20 = 847.12 : x
  2. Step 2: Convert to fraction form
    2,080.24/3,118.20 = 847.12/x
  3. Step 3: Cross multiply
    2,080.24x = 3,118.20 × 847.12
  4. Step 4: Simplify right side
    2,080.24x = 2,641,489.58
  5. Step 5: Solve for x
    x = 2,641,489.58/2,080.24
  6. Step 6: Final answer
    x = 1,269.80

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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.