Home / 3,280.67-4,921.49-1,088.90

Finding the Fourth Proportional to 3,280.67, 4,921.49 and 1,088.90

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Solution

The fourth proportional to 3,280.67, 4,921.49 and 1,088.90 is: 1,633.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.67 : 4,921.49 = 1,088.90 : x
  2. Step 2: Convert to fraction form
    3,280.67/4,921.49 = 1,088.90/x
  3. Step 3: Cross multiply
    3,280.67x = 4,921.49 × 1,088.90
  4. Step 4: Simplify right side
    3,280.67x = 5,359,010.46
  5. Step 5: Solve for x
    x = 5,359,010.46/3,280.67
  6. Step 6: Final answer
    x = 1,633.51

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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.