Home / 3,912.06-5,398.65-2,340.18

Finding the Fourth Proportional to 3,912.06, 5,398.65 and 2,340.18

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Solution

The fourth proportional to 3,912.06, 5,398.65 and 2,340.18 is: 3,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.06 : 5,398.65 = 2,340.18 : x
  2. Step 2: Convert to fraction form
    3,912.06/5,398.65 = 2,340.18/x
  3. Step 3: Cross multiply
    3,912.06x = 5,398.65 × 2,340.18
  4. Step 4: Simplify right side
    3,912.06x = 12,633,812.76
  5. Step 5: Solve for x
    x = 12,633,812.76/3,912.06
  6. Step 6: Final answer
    x = 3,229.45

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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.