Home / 1,441.65-2,161.40-576.57

Finding the Fourth Proportional to 1,441.65, 2,161.40 and 576.57

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Solution

The fourth proportional to 1,441.65, 2,161.40 and 576.57 is: 864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441.65 : 2,161.40 = 576.57 : x
  2. Step 2: Convert to fraction form
    1,441.65/2,161.40 = 576.57/x
  3. Step 3: Cross multiply
    1,441.65x = 2,161.40 × 576.57
  4. Step 4: Simplify right side
    1,441.65x = 1,246,195.52
  5. Step 5: Solve for x
    x = 1,246,195.52/1,441.65
  6. Step 6: Final answer
    x = 864.42

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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.