Home / 1,381.26-2,071.23-503.14

Finding the Fourth Proportional to 1,381.26, 2,071.23 and 503.14

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Solution

The fourth proportional to 1,381.26, 2,071.23 and 503.14 is: 754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381.26 : 2,071.23 = 503.14 : x
  2. Step 2: Convert to fraction form
    1,381.26/2,071.23 = 503.14/x
  3. Step 3: Cross multiply
    1,381.26x = 2,071.23 × 503.14
  4. Step 4: Simplify right side
    1,381.26x = 1,042,118.66
  5. Step 5: Solve for x
    x = 1,042,118.66/1,381.26
  6. Step 6: Final answer
    x = 754.47

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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.