Home / 3,440.90-4,748.61-1,948.74

Finding the Fourth Proportional to 3,440.90, 4,748.61 and 1,948.74

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Solution

The fourth proportional to 3,440.90, 4,748.61 and 1,948.74 is: 2,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.90 : 4,748.61 = 1,948.74 : x
  2. Step 2: Convert to fraction form
    3,440.90/4,748.61 = 1,948.74/x
  3. Step 3: Cross multiply
    3,440.90x = 4,748.61 × 1,948.74
  4. Step 4: Simplify right side
    3,440.90x = 9,253,806.25
  5. Step 5: Solve for x
    x = 9,253,806.25/3,440.90
  6. Step 6: Final answer
    x = 2,689.36

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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.