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Finding the Fourth Proportional to 1,180.98, 1,766.85 and 852.55

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Solution

The fourth proportional to 1,180.98, 1,766.85 and 852.55 is: 1,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.98 : 1,766.85 = 852.55 : x
  2. Step 2: Convert to fraction form
    1,180.98/1,766.85 = 852.55/x
  3. Step 3: Cross multiply
    1,180.98x = 1,766.85 × 852.55
  4. Step 4: Simplify right side
    1,180.98x = 1,506,327.97
  5. Step 5: Solve for x
    x = 1,506,327.97/1,180.98
  6. Step 6: Final answer
    x = 1,275.49

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1.5x scale

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.