Home / 7,131.90-9,836.01-5,360.43

Finding the Fourth Proportional to 7,131.90, 9,836.01 and 5,360.43

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Solution

The fourth proportional to 7,131.90, 9,836.01 and 5,360.43 is: 7,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.90 : 9,836.01 = 5,360.43 : x
  2. Step 2: Convert to fraction form
    7,131.90/9,836.01 = 5,360.43/x
  3. Step 3: Cross multiply
    7,131.90x = 9,836.01 × 5,360.43
  4. Step 4: Simplify right side
    7,131.90x = 52,725,243.08
  5. Step 5: Solve for x
    x = 52,725,243.08/7,131.90
  6. Step 6: Final answer
    x = 7,392.87

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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.