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Finding the Fourth Proportional to 3,060.83, 4,591.85 and 980.68

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Solution

The fourth proportional to 3,060.83, 4,591.85 and 980.68 is: 1,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.83 : 4,591.85 = 980.68 : x
  2. Step 2: Convert to fraction form
    3,060.83/4,591.85 = 980.68/x
  3. Step 3: Cross multiply
    3,060.83x = 4,591.85 × 980.68
  4. Step 4: Simplify right side
    3,060.83x = 4,503,112.23
  5. Step 5: Solve for x
    x = 4,503,112.23/3,060.83
  6. Step 6: Final answer
    x = 1,471.21

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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.