Home / 3,278.29-4,523.88-1,861.79

Finding the Fourth Proportional to 3,278.29, 4,523.88 and 1,861.79

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Solution

The fourth proportional to 3,278.29, 4,523.88 and 1,861.79 is: 2,569.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.29 : 4,523.88 = 1,861.79 : x
  2. Step 2: Convert to fraction form
    3,278.29/4,523.88 = 1,861.79/x
  3. Step 3: Cross multiply
    3,278.29x = 4,523.88 × 1,861.79
  4. Step 4: Simplify right side
    3,278.29x = 8,422,491.93
  5. Step 5: Solve for x
    x = 8,422,491.93/3,278.29
  6. Step 6: Final answer
    x = 2,569.18

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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.