Home / 2,232.02-3,080.42-1,287.85

Finding the Fourth Proportional to 2,232.02, 3,080.42 and 1,287.85

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Solution

The fourth proportional to 2,232.02, 3,080.42 and 1,287.85 is: 1,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.02 : 3,080.42 = 1,287.85 : x
  2. Step 2: Convert to fraction form
    2,232.02/3,080.42 = 1,287.85/x
  3. Step 3: Cross multiply
    2,232.02x = 3,080.42 × 1,287.85
  4. Step 4: Simplify right side
    2,232.02x = 3,967,118.90
  5. Step 5: Solve for x
    x = 3,967,118.90/2,232.02
  6. Step 6: Final answer
    x = 1,777.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.