Home / 1,670.23-2,304.85-1,081.11

Finding the Fourth Proportional to 1,670.23, 2,304.85 and 1,081.11

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Solution

The fourth proportional to 1,670.23, 2,304.85 and 1,081.11 is: 1,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.23 : 2,304.85 = 1,081.11 : x
  2. Step 2: Convert to fraction form
    1,670.23/2,304.85 = 1,081.11/x
  3. Step 3: Cross multiply
    1,670.23x = 2,304.85 × 1,081.11
  4. Step 4: Simplify right side
    1,670.23x = 2,491,796.38
  5. Step 5: Solve for x
    x = 2,491,796.38/1,670.23
  6. Step 6: Final answer
    x = 1,491.89

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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.