Home / 1,508.43-2,261.09-631.45

Finding the Fourth Proportional to 1,508.43, 2,261.09 and 631.45

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Solution

The fourth proportional to 1,508.43, 2,261.09 and 631.45 is: 946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.43 : 2,261.09 = 631.45 : x
  2. Step 2: Convert to fraction form
    1,508.43/2,261.09 = 631.45/x
  3. Step 3: Cross multiply
    1,508.43x = 2,261.09 × 631.45
  4. Step 4: Simplify right side
    1,508.43x = 1,427,765.28
  5. Step 5: Solve for x
    x = 1,427,765.28/1,508.43
  6. Step 6: Final answer
    x = 946.52

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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.