Home / 3,445.68-4,755.33-2,119.71

Finding the Fourth Proportional to 3,445.68, 4,755.33 and 2,119.71

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Solution

The fourth proportional to 3,445.68, 4,755.33 and 2,119.71 is: 2,925.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.68 : 4,755.33 = 2,119.71 : x
  2. Step 2: Convert to fraction form
    3,445.68/4,755.33 = 2,119.71/x
  3. Step 3: Cross multiply
    3,445.68x = 4,755.33 × 2,119.71
  4. Step 4: Simplify right side
    3,445.68x = 10,079,920.55
  5. Step 5: Solve for x
    x = 10,079,920.55/3,445.68
  6. Step 6: Final answer
    x = 2,925.38

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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.