Home / 7,114.43-9,817.92-3,970.61

Finding the Fourth Proportional to 7,114.43, 9,817.92 and 3,970.61

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Solution

The fourth proportional to 7,114.43, 9,817.92 and 3,970.61 is: 5,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.43 : 9,817.92 = 3,970.61 : x
  2. Step 2: Convert to fraction form
    7,114.43/9,817.92 = 3,970.61/x
  3. Step 3: Cross multiply
    7,114.43x = 9,817.92 × 3,970.61
  4. Step 4: Simplify right side
    7,114.43x = 38,983,131.33
  5. Step 5: Solve for x
    x = 38,983,131.33/7,114.43
  6. Step 6: Final answer
    x = 5,479.45

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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.