Home / 3,871.40-5,343.37-2,545.22

Finding the Fourth Proportional to 3,871.40, 5,343.37 and 2,545.22

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Solution

The fourth proportional to 3,871.40, 5,343.37 and 2,545.22 is: 3,512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.40 : 5,343.37 = 2,545.22 : x
  2. Step 2: Convert to fraction form
    3,871.40/5,343.37 = 2,545.22/x
  3. Step 3: Cross multiply
    3,871.40x = 5,343.37 × 2,545.22
  4. Step 4: Simplify right side
    3,871.40x = 13,600,073.50
  5. Step 5: Solve for x
    x = 13,600,073.50/3,871.40
  6. Step 6: Final answer
    x = 3,512.96

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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.