Home / 3,921.66-5,877.01-2,167.50

Finding the Fourth Proportional to 3,921.66, 5,877.01 and 2,167.50

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Solution

The fourth proportional to 3,921.66, 5,877.01 and 2,167.50 is: 3,248.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.66 : 5,877.01 = 2,167.50 : x
  2. Step 2: Convert to fraction form
    3,921.66/5,877.01 = 2,167.50/x
  3. Step 3: Cross multiply
    3,921.66x = 5,877.01 × 2,167.50
  4. Step 4: Simplify right side
    3,921.66x = 12,738,419.18
  5. Step 5: Solve for x
    x = 12,738,419.18/3,921.66
  6. Step 6: Final answer
    x = 3,248.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.