Home / 2,655.30-3,982.96-1,011.40

Finding the Fourth Proportional to 2,655.30, 3,982.96 and 1,011.40

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Solution

The fourth proportional to 2,655.30, 3,982.96 and 1,011.40 is: 1,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.30 : 3,982.96 = 1,011.40 : x
  2. Step 2: Convert to fraction form
    2,655.30/3,982.96 = 1,011.40/x
  3. Step 3: Cross multiply
    2,655.30x = 3,982.96 × 1,011.40
  4. Step 4: Simplify right side
    2,655.30x = 4,028,365.74
  5. Step 5: Solve for x
    x = 4,028,365.74/2,655.30
  6. Step 6: Final answer
    x = 1,517.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.