Home / 2,219.13-3,326.33-1,178.48

Finding the Fourth Proportional to 2,219.13, 3,326.33 and 1,178.48

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Solution

The fourth proportional to 2,219.13, 3,326.33 and 1,178.48 is: 1,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.13 : 3,326.33 = 1,178.48 : x
  2. Step 2: Convert to fraction form
    2,219.13/3,326.33 = 1,178.48/x
  3. Step 3: Cross multiply
    2,219.13x = 3,326.33 × 1,178.48
  4. Step 4: Simplify right side
    2,219.13x = 3,920,024.64
  5. Step 5: Solve for x
    x = 3,920,024.64/2,219.13
  6. Step 6: Final answer
    x = 1,766.47

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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.