Home / 3,439.80-5,159.99-1,100.13

Finding the Fourth Proportional to 3,439.80, 5,159.99 and 1,100.13

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Solution

The fourth proportional to 3,439.80, 5,159.99 and 1,100.13 is: 1,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.80 : 5,159.99 = 1,100.13 : x
  2. Step 2: Convert to fraction form
    3,439.80/5,159.99 = 1,100.13/x
  3. Step 3: Cross multiply
    3,439.80x = 5,159.99 × 1,100.13
  4. Step 4: Simplify right side
    3,439.80x = 5,676,659.80
  5. Step 5: Solve for x
    x = 5,676,659.80/3,439.80
  6. Step 6: Final answer
    x = 1,650.29

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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.