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Finding the Fourth Proportional to 631.32, 941.80 and 587.13

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Solution

The fourth proportional to 631.32, 941.80 and 587.13 is: 875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.32 : 941.80 = 587.13 : x
  2. Step 2: Convert to fraction form
    631.32/941.80 = 587.13/x
  3. Step 3: Cross multiply
    631.32x = 941.80 × 587.13
  4. Step 4: Simplify right side
    631.32x = 552,959.77
  5. Step 5: Solve for x
    x = 552,959.77/631.32
  6. Step 6: Final answer
    x = 875.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.