Home / 2,232.02-3,080.19-1,287.81

Finding the Fourth Proportional to 2,232.02, 3,080.19 and 1,287.81

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Solution

The fourth proportional to 2,232.02, 3,080.19 and 1,287.81 is: 1,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.02 : 3,080.19 = 1,287.81 : x
  2. Step 2: Convert to fraction form
    2,232.02/3,080.19 = 1,287.81/x
  3. Step 3: Cross multiply
    2,232.02x = 3,080.19 × 1,287.81
  4. Step 4: Simplify right side
    2,232.02x = 3,966,704.31
  5. Step 5: Solve for x
    x = 3,966,704.31/2,232.02
  6. Step 6: Final answer
    x = 1,777.18

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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.