Home / 9,131.27-13,691.70-2,890.08

Finding the Fourth Proportional to 9,131.27, 13,691.70 and 2,890.08

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Solution

The fourth proportional to 9,131.27, 13,691.70 and 2,890.08 is: 4,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.27 : 13,691.70 = 2,890.08 : x
  2. Step 2: Convert to fraction form
    9,131.27/13,691.70 = 2,890.08/x
  3. Step 3: Cross multiply
    9,131.27x = 13,691.70 × 2,890.08
  4. Step 4: Simplify right side
    9,131.27x = 39,570,108.34
  5. Step 5: Solve for x
    x = 39,570,108.34/9,131.27
  6. Step 6: Final answer
    x = 4,333.47

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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.