Home / 3,819.03-5,270.20-2,117.53

Finding the Fourth Proportional to 3,819.03, 5,270.20 and 2,117.53

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Solution

The fourth proportional to 3,819.03, 5,270.20 and 2,117.53 is: 2,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.03 : 5,270.20 = 2,117.53 : x
  2. Step 2: Convert to fraction form
    3,819.03/5,270.20 = 2,117.53/x
  3. Step 3: Cross multiply
    3,819.03x = 5,270.20 × 2,117.53
  4. Step 4: Simplify right side
    3,819.03x = 11,159,805.03
  5. Step 5: Solve for x
    x = 11,159,805.03/3,819.03
  6. Step 6: Final answer
    x = 2,922.15

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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.