Home / 3,440.68-4,748.12-1,948.86

Finding the Fourth Proportional to 3,440.68, 4,748.12 and 1,948.86

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Solution

The fourth proportional to 3,440.68, 4,748.12 and 1,948.86 is: 2,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.68 : 4,748.12 = 1,948.86 : x
  2. Step 2: Convert to fraction form
    3,440.68/4,748.12 = 1,948.86/x
  3. Step 3: Cross multiply
    3,440.68x = 4,748.12 × 1,948.86
  4. Step 4: Simplify right side
    3,440.68x = 9,253,418.71
  5. Step 5: Solve for x
    x = 9,253,418.71/3,440.68
  6. Step 6: Final answer
    x = 2,689.42

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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.