Home / 7,108.97-9,810.33-3,965.18

Finding the Fourth Proportional to 7,108.97, 9,810.33 and 3,965.18

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Solution

The fourth proportional to 7,108.97, 9,810.33 and 3,965.18 is: 5,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.97 : 9,810.33 = 3,965.18 : x
  2. Step 2: Convert to fraction form
    7,108.97/9,810.33 = 3,965.18/x
  3. Step 3: Cross multiply
    7,108.97x = 9,810.33 × 3,965.18
  4. Step 4: Simplify right side
    7,108.97x = 38,899,724.31
  5. Step 5: Solve for x
    x = 38,899,724.31/7,108.97
  6. Step 6: Final answer
    x = 5,471.92

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1.5x scale

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.