Home / 2,781.04-4,171.02-1,221.52

Finding the Fourth Proportional to 2,781.04, 4,171.02 and 1,221.52

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Solution

The fourth proportional to 2,781.04, 4,171.02 and 1,221.52 is: 1,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.04 : 4,171.02 = 1,221.52 : x
  2. Step 2: Convert to fraction form
    2,781.04/4,171.02 = 1,221.52/x
  3. Step 3: Cross multiply
    2,781.04x = 4,171.02 × 1,221.52
  4. Step 4: Simplify right side
    2,781.04x = 5,094,984.35
  5. Step 5: Solve for x
    x = 5,094,984.35/2,781.04
  6. Step 6: Final answer
    x = 1,832.04

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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.