Home / 1,531.06-2,295.57-801.15

Finding the Fourth Proportional to 1,531.06, 2,295.57 and 801.15

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Solution

The fourth proportional to 1,531.06, 2,295.57 and 801.15 is: 1,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.06 : 2,295.57 = 801.15 : x
  2. Step 2: Convert to fraction form
    1,531.06/2,295.57 = 801.15/x
  3. Step 3: Cross multiply
    1,531.06x = 2,295.57 × 801.15
  4. Step 4: Simplify right side
    1,531.06x = 1,839,090.30
  5. Step 5: Solve for x
    x = 1,839,090.30/1,531.06
  6. Step 6: Final answer
    x = 1,201.19

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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.