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Finding the Fourth Proportional to 1,098.32, 1,648.28 and 884.48

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Solution

The fourth proportional to 1,098.32, 1,648.28 and 884.48 is: 1,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098.32 : 1,648.28 = 884.48 : x
  2. Step 2: Convert to fraction form
    1,098.32/1,648.28 = 884.48/x
  3. Step 3: Cross multiply
    1,098.32x = 1,648.28 × 884.48
  4. Step 4: Simplify right side
    1,098.32x = 1,457,870.69
  5. Step 5: Solve for x
    x = 1,457,870.69/1,098.32
  6. Step 6: Final answer
    x = 1,327.36

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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.