Home / 3,426.60-4,721.79-2,480.76

Finding the Fourth Proportional to 3,426.60, 4,721.79 and 2,480.76

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Solution

The fourth proportional to 3,426.60, 4,721.79 and 2,480.76 is: 3,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.60 : 4,721.79 = 2,480.76 : x
  2. Step 2: Convert to fraction form
    3,426.60/4,721.79 = 2,480.76/x
  3. Step 3: Cross multiply
    3,426.60x = 4,721.79 × 2,480.76
  4. Step 4: Simplify right side
    3,426.60x = 11,713,627.76
  5. Step 5: Solve for x
    x = 11,713,627.76/3,426.60
  6. Step 6: Final answer
    x = 3,418.44

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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.