Home / 3,876.05-5,349.06-2,197.40

Finding the Fourth Proportional to 3,876.05, 5,349.06 and 2,197.40

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Solution

The fourth proportional to 3,876.05, 5,349.06 and 2,197.40 is: 3,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.05 : 5,349.06 = 2,197.40 : x
  2. Step 2: Convert to fraction form
    3,876.05/5,349.06 = 2,197.40/x
  3. Step 3: Cross multiply
    3,876.05x = 5,349.06 × 2,197.40
  4. Step 4: Simplify right side
    3,876.05x = 11,754,049.01
  5. Step 5: Solve for x
    x = 11,754,049.01/3,876.05
  6. Step 6: Final answer
    x = 3,032.48

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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.