Home / 3,493.38-4,820.96-1,921.57

Finding the Fourth Proportional to 3,493.38, 4,820.96 and 1,921.57

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Solution

The fourth proportional to 3,493.38, 4,820.96 and 1,921.57 is: 2,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.38 : 4,820.96 = 1,921.57 : x
  2. Step 2: Convert to fraction form
    3,493.38/4,820.96 = 1,921.57/x
  3. Step 3: Cross multiply
    3,493.38x = 4,820.96 × 1,921.57
  4. Step 4: Simplify right side
    3,493.38x = 9,263,812.11
  5. Step 5: Solve for x
    x = 9,263,812.11/3,493.38
  6. Step 6: Final answer
    x = 2,651.82

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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.