Home / 3,279.56-4,920.78-1,088.60

Finding the Fourth Proportional to 3,279.56, 4,920.78 and 1,088.60

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Solution

The fourth proportional to 3,279.56, 4,920.78 and 1,088.60 is: 1,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.56 : 4,920.78 = 1,088.60 : x
  2. Step 2: Convert to fraction form
    3,279.56/4,920.78 = 1,088.60/x
  3. Step 3: Cross multiply
    3,279.56x = 4,920.78 × 1,088.60
  4. Step 4: Simplify right side
    3,279.56x = 5,356,761.11
  5. Step 5: Solve for x
    x = 5,356,761.11/3,279.56
  6. Step 6: Final answer
    x = 1,633.38

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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.