Home / 5,240.43-7,231.65-2,972.19

Finding the Fourth Proportional to 5,240.43, 7,231.65 and 2,972.19

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Solution

The fourth proportional to 5,240.43, 7,231.65 and 2,972.19 is: 4,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.43 : 7,231.65 = 2,972.19 : x
  2. Step 2: Convert to fraction form
    5,240.43/7,231.65 = 2,972.19/x
  3. Step 3: Cross multiply
    5,240.43x = 7,231.65 × 2,972.19
  4. Step 4: Simplify right side
    5,240.43x = 21,493,801.66
  5. Step 5: Solve for x
    x = 21,493,801.66/5,240.43
  6. Step 6: Final answer
    x = 4,101.53

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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.