Home / 3,977.61-5,489.22-2,298.87

Finding the Fourth Proportional to 3,977.61, 5,489.22 and 2,298.87

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Solution

The fourth proportional to 3,977.61, 5,489.22 and 2,298.87 is: 3,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.61 : 5,489.22 = 2,298.87 : x
  2. Step 2: Convert to fraction form
    3,977.61/5,489.22 = 2,298.87/x
  3. Step 3: Cross multiply
    3,977.61x = 5,489.22 × 2,298.87
  4. Step 4: Simplify right side
    3,977.61x = 12,619,003.18
  5. Step 5: Solve for x
    x = 12,619,003.18/3,977.61
  6. Step 6: Final answer
    x = 3,172.51

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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.