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Finding the Fourth Proportional to 3,040.57, 4,560.85 and 960.78

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Solution

The fourth proportional to 3,040.57, 4,560.85 and 960.78 is: 1,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.57 : 4,560.85 = 960.78 : x
  2. Step 2: Convert to fraction form
    3,040.57/4,560.85 = 960.78/x
  3. Step 3: Cross multiply
    3,040.57x = 4,560.85 × 960.78
  4. Step 4: Simplify right side
    3,040.57x = 4,381,973.46
  5. Step 5: Solve for x
    x = 4,381,973.46/3,040.57
  6. Step 6: Final answer
    x = 1,441.17

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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.