Home / 1,531.66-2,115.09-1,449.82

Finding the Fourth Proportional to 1,531.66, 2,115.09 and 1,449.82

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Solution

The fourth proportional to 1,531.66, 2,115.09 and 1,449.82 is: 2,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.66 : 2,115.09 = 1,449.82 : x
  2. Step 2: Convert to fraction form
    1,531.66/2,115.09 = 1,449.82/x
  3. Step 3: Cross multiply
    1,531.66x = 2,115.09 × 1,449.82
  4. Step 4: Simplify right side
    1,531.66x = 3,066,499.78
  5. Step 5: Solve for x
    x = 3,066,499.78/1,531.66
  6. Step 6: Final answer
    x = 2,002.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.