Home / 3,977.50-5,489.22-2,298.98

Finding the Fourth Proportional to 3,977.50, 5,489.22 and 2,298.98

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Solution

The fourth proportional to 3,977.50, 5,489.22 and 2,298.98 is: 3,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.50 : 5,489.22 = 2,298.98 : x
  2. Step 2: Convert to fraction form
    3,977.50/5,489.22 = 2,298.98/x
  3. Step 3: Cross multiply
    3,977.50x = 5,489.22 × 2,298.98
  4. Step 4: Simplify right side
    3,977.50x = 12,619,607.00
  5. Step 5: Solve for x
    x = 12,619,607.00/3,977.50
  6. Step 6: Final answer
    x = 3,172.75

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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.