Home / 2,747.96-4,122.01-800.18

Finding the Fourth Proportional to 2,747.96, 4,122.01 and 800.18

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Solution

The fourth proportional to 2,747.96, 4,122.01 and 800.18 is: 1,200.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.96 : 4,122.01 = 800.18 : x
  2. Step 2: Convert to fraction form
    2,747.96/4,122.01 = 800.18/x
  3. Step 3: Cross multiply
    2,747.96x = 4,122.01 × 800.18
  4. Step 4: Simplify right side
    2,747.96x = 3,298,341.31
  5. Step 5: Solve for x
    x = 3,298,341.31/2,747.96
  6. Step 6: Final answer
    x = 1,200.29

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1.5x scale

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.