Home / 2,753.60-4,126.80-1,983.20

Finding the Fourth Proportional to 2,753.60, 4,126.80 and 1,983.20

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Solution

The fourth proportional to 2,753.60, 4,126.80 and 1,983.20 is: 2,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.60 : 4,126.80 = 1,983.20 : x
  2. Step 2: Convert to fraction form
    2,753.60/4,126.80 = 1,983.20/x
  3. Step 3: Cross multiply
    2,753.60x = 4,126.80 × 1,983.20
  4. Step 4: Simplify right side
    2,753.60x = 8,184,269.76
  5. Step 5: Solve for x
    x = 8,184,269.76/2,753.60
  6. Step 6: Final answer
    x = 2,972.21

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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.