Home / 3,275-4,519.46-1,948.68

Finding the Fourth Proportional to 3,275, 4,519.46 and 1,948.68

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Solution

The fourth proportional to 3,275, 4,519.46 and 1,948.68 is: 2,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275 : 4,519.46 = 1,948.68 : x
  2. Step 2: Convert to fraction form
    3,275/4,519.46 = 1,948.68/x
  3. Step 3: Cross multiply
    3,275x = 4,519.46 × 1,948.68
  4. Step 4: Simplify right side
    3,275x = 8,806,981.31
  5. Step 5: Solve for x
    x = 8,806,981.31/3,275
  6. Step 6: Final answer
    x = 2,689.15

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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.