Home / 3,977.30-5,489.40-2,298.48

Finding the Fourth Proportional to 3,977.30, 5,489.40 and 2,298.48

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Solution

The fourth proportional to 3,977.30, 5,489.40 and 2,298.48 is: 3,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.30 : 5,489.40 = 2,298.48 : x
  2. Step 2: Convert to fraction form
    3,977.30/5,489.40 = 2,298.48/x
  3. Step 3: Cross multiply
    3,977.30x = 5,489.40 × 2,298.48
  4. Step 4: Simplify right side
    3,977.30x = 12,617,276.11
  5. Step 5: Solve for x
    x = 12,617,276.11/3,977.30
  6. Step 6: Final answer
    x = 3,172.32

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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.