Home / 3,104.65-4,278.40-2,901.61

Finding the Fourth Proportional to 3,104.65, 4,278.40 and 2,901.61

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Solution

The fourth proportional to 3,104.65, 4,278.40 and 2,901.61 is: 3,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.65 : 4,278.40 = 2,901.61 : x
  2. Step 2: Convert to fraction form
    3,104.65/4,278.40 = 2,901.61/x
  3. Step 3: Cross multiply
    3,104.65x = 4,278.40 × 2,901.61
  4. Step 4: Simplify right side
    3,104.65x = 12,414,248.22
  5. Step 5: Solve for x
    x = 12,414,248.22/3,104.65
  6. Step 6: Final answer
    x = 3,998.60

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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.