Home / 2,232.18-3,080.30-1,288.13

Finding the Fourth Proportional to 2,232.18, 3,080.30 and 1,288.13

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Solution

The fourth proportional to 2,232.18, 3,080.30 and 1,288.13 is: 1,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.18 : 3,080.30 = 1,288.13 : x
  2. Step 2: Convert to fraction form
    2,232.18/3,080.30 = 1,288.13/x
  3. Step 3: Cross multiply
    2,232.18x = 3,080.30 × 1,288.13
  4. Step 4: Simplify right side
    2,232.18x = 3,967,805.00
  5. Step 5: Solve for x
    x = 3,967,805.00/2,232.18
  6. Step 6: Final answer
    x = 1,777.55

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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.