Home / 3,280.49-4,922.19-1,720.13

Finding the Fourth Proportional to 3,280.49, 4,922.19 and 1,720.13

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Solution

The fourth proportional to 3,280.49, 4,922.19 and 1,720.13 is: 2,580.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.49 : 4,922.19 = 1,720.13 : x
  2. Step 2: Convert to fraction form
    3,280.49/4,922.19 = 1,720.13/x
  3. Step 3: Cross multiply
    3,280.49x = 4,922.19 × 1,720.13
  4. Step 4: Simplify right side
    3,280.49x = 8,466,773.47
  5. Step 5: Solve for x
    x = 8,466,773.47/3,280.49
  6. Step 6: Final answer
    x = 2,580.95

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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.