Home / 3,851.09-5,314.49-2,082.69

Finding the Fourth Proportional to 3,851.09, 5,314.49 and 2,082.69

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Solution

The fourth proportional to 3,851.09, 5,314.49 and 2,082.69 is: 2,874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.09 : 5,314.49 = 2,082.69 : x
  2. Step 2: Convert to fraction form
    3,851.09/5,314.49 = 2,082.69/x
  3. Step 3: Cross multiply
    3,851.09x = 5,314.49 × 2,082.69
  4. Step 4: Simplify right side
    3,851.09x = 11,068,424.76
  5. Step 5: Solve for x
    x = 11,068,424.76/3,851.09
  6. Step 6: Final answer
    x = 2,874.11

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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.