Home / 2,748.80-4,122.30-1,017.20

Finding the Fourth Proportional to 2,748.80, 4,122.30 and 1,017.20

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Solution

The fourth proportional to 2,748.80, 4,122.30 and 1,017.20 is: 1,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.80 : 4,122.30 = 1,017.20 : x
  2. Step 2: Convert to fraction form
    2,748.80/4,122.30 = 1,017.20/x
  3. Step 3: Cross multiply
    2,748.80x = 4,122.30 × 1,017.20
  4. Step 4: Simplify right side
    2,748.80x = 4,193,203.56
  5. Step 5: Solve for x
    x = 4,193,203.56/2,748.80
  6. Step 6: Final answer
    x = 1,525.47

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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.