Home / 1,441.06-2,161.24-660.57

Finding the Fourth Proportional to 1,441.06, 2,161.24 and 660.57

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Solution

The fourth proportional to 1,441.06, 2,161.24 and 660.57 is: 990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.06 : 2,161.24 = 660.57 : x
  2. Step 2: Convert to fraction form
    1,441.06/2,161.24 = 660.57/x
  3. Step 3: Cross multiply
    1,441.06x = 2,161.24 × 660.57
  4. Step 4: Simplify right side
    1,441.06x = 1,427,656.54
  5. Step 5: Solve for x
    x = 1,427,656.54/1,441.06
  6. Step 6: Final answer
    x = 990.70

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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.