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Finding the Fourth Proportional to 883.20, 1,218.72 and 735.44

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Solution

The fourth proportional to 883.20, 1,218.72 and 735.44 is: 1,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.20 : 1,218.72 = 735.44 : x
  2. Step 2: Convert to fraction form
    883.20/1,218.72 = 735.44/x
  3. Step 3: Cross multiply
    883.20x = 1,218.72 × 735.44
  4. Step 4: Simplify right side
    883.20x = 896,295.44
  5. Step 5: Solve for x
    x = 896,295.44/883.20
  6. Step 6: Final answer
    x = 1,014.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.