Home / 3,876.12-5,349.10-2,197.49

Finding the Fourth Proportional to 3,876.12, 5,349.10 and 2,197.49

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Solution

The fourth proportional to 3,876.12, 5,349.10 and 2,197.49 is: 3,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.12 : 5,349.10 = 2,197.49 : x
  2. Step 2: Convert to fraction form
    3,876.12/5,349.10 = 2,197.49/x
  3. Step 3: Cross multiply
    3,876.12x = 5,349.10 × 2,197.49
  4. Step 4: Simplify right side
    3,876.12x = 11,754,606.34
  5. Step 5: Solve for x
    x = 11,754,606.34/3,876.12
  6. Step 6: Final answer
    x = 3,032.57

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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.