Home / 3,872.18-5,343.64-2,193.60

Finding the Fourth Proportional to 3,872.18, 5,343.64 and 2,193.60

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Solution

The fourth proportional to 3,872.18, 5,343.64 and 2,193.60 is: 3,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.18 : 5,343.64 = 2,193.60 : x
  2. Step 2: Convert to fraction form
    3,872.18/5,343.64 = 2,193.60/x
  3. Step 3: Cross multiply
    3,872.18x = 5,343.64 × 2,193.60
  4. Step 4: Simplify right side
    3,872.18x = 11,721,808.70
  5. Step 5: Solve for x
    x = 11,721,808.70/3,872.18
  6. Step 6: Final answer
    x = 3,027.19

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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.