Home / 1,281.17-1,921.19-588.29

Finding the Fourth Proportional to 1,281.17, 1,921.19 and 588.29

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Solution

The fourth proportional to 1,281.17, 1,921.19 and 588.29 is: 882.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.17 : 1,921.19 = 588.29 : x
  2. Step 2: Convert to fraction form
    1,281.17/1,921.19 = 588.29/x
  3. Step 3: Cross multiply
    1,281.17x = 1,921.19 × 588.29
  4. Step 4: Simplify right side
    1,281.17x = 1,130,204.32
  5. Step 5: Solve for x
    x = 1,130,204.32/1,281.17
  6. Step 6: Final answer
    x = 882.16

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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.