Home / 2,220.12-3,327.78-1,095.17

Finding the Fourth Proportional to 2,220.12, 3,327.78 and 1,095.17

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Solution

The fourth proportional to 2,220.12, 3,327.78 and 1,095.17 is: 1,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.12 : 3,327.78 = 1,095.17 : x
  2. Step 2: Convert to fraction form
    2,220.12/3,327.78 = 1,095.17/x
  3. Step 3: Cross multiply
    2,220.12x = 3,327.78 × 1,095.17
  4. Step 4: Simplify right side
    2,220.12x = 3,644,462.71
  5. Step 5: Solve for x
    x = 3,644,462.71/2,220.12
  6. Step 6: Final answer
    x = 1,641.56

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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.