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Finding the Fourth Proportional to 736.98, 1,100.20 and 711.36

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Solution

The fourth proportional to 736.98, 1,100.20 and 711.36 is: 1,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.98 : 1,100.20 = 711.36 : x
  2. Step 2: Convert to fraction form
    736.98/1,100.20 = 711.36/x
  3. Step 3: Cross multiply
    736.98x = 1,100.20 × 711.36
  4. Step 4: Simplify right side
    736.98x = 782,638.27
  5. Step 5: Solve for x
    x = 782,638.27/736.98
  6. Step 6: Final answer
    x = 1,061.95

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1.5x scale

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.