Home / 3,493.68-4,821.66-2,001.78

Finding the Fourth Proportional to 3,493.68, 4,821.66 and 2,001.78

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Solution

The fourth proportional to 3,493.68, 4,821.66 and 2,001.78 is: 2,762.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.68 : 4,821.66 = 2,001.78 : x
  2. Step 2: Convert to fraction form
    3,493.68/4,821.66 = 2,001.78/x
  3. Step 3: Cross multiply
    3,493.68x = 4,821.66 × 2,001.78
  4. Step 4: Simplify right side
    3,493.68x = 9,651,902.55
  5. Step 5: Solve for x
    x = 9,651,902.55/3,493.68
  6. Step 6: Final answer
    x = 2,762.68

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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.