Home / 1,431.36-2,147.13-566.28

Finding the Fourth Proportional to 1,431.36, 2,147.13 and 566.28

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Solution

The fourth proportional to 1,431.36, 2,147.13 and 566.28 is: 849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.36 : 2,147.13 = 566.28 : x
  2. Step 2: Convert to fraction form
    1,431.36/2,147.13 = 566.28/x
  3. Step 3: Cross multiply
    1,431.36x = 2,147.13 × 566.28
  4. Step 4: Simplify right side
    1,431.36x = 1,215,876.78
  5. Step 5: Solve for x
    x = 1,215,876.78/1,431.36
  6. Step 6: Final answer
    x = 849.46

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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.