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Finding the Fourth Proportional to 1,043.98, 1,566.20 and 737.80

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Solution

The fourth proportional to 1,043.98, 1,566.20 and 737.80 is: 1,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.98 : 1,566.20 = 737.80 : x
  2. Step 2: Convert to fraction form
    1,043.98/1,566.20 = 737.80/x
  3. Step 3: Cross multiply
    1,043.98x = 1,566.20 × 737.80
  4. Step 4: Simplify right side
    1,043.98x = 1,155,542.36
  5. Step 5: Solve for x
    x = 1,155,542.36/1,043.98
  6. Step 6: Final answer
    x = 1,106.86

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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.