Home / 2,205.55-3,306.48-1,111.13

Finding the Fourth Proportional to 2,205.55, 3,306.48 and 1,111.13

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Solution

The fourth proportional to 2,205.55, 3,306.48 and 1,111.13 is: 1,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.55 : 3,306.48 = 1,111.13 : x
  2. Step 2: Convert to fraction form
    2,205.55/3,306.48 = 1,111.13/x
  3. Step 3: Cross multiply
    2,205.55x = 3,306.48 × 1,111.13
  4. Step 4: Simplify right side
    2,205.55x = 3,673,929.12
  5. Step 5: Solve for x
    x = 3,673,929.12/2,205.55
  6. Step 6: Final answer
    x = 1,665.77

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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.