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Finding the Fourth Proportional to 1,094.71, 1,642.23 and 401.22

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Solution

The fourth proportional to 1,094.71, 1,642.23 and 401.22 is: 601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.71 : 1,642.23 = 401.22 : x
  2. Step 2: Convert to fraction form
    1,094.71/1,642.23 = 401.22/x
  3. Step 3: Cross multiply
    1,094.71x = 1,642.23 × 401.22
  4. Step 4: Simplify right side
    1,094.71x = 658,885.30
  5. Step 5: Solve for x
    x = 658,885.30/1,094.71
  6. Step 6: Final answer
    x = 601.88

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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.