Home / 3,480.57-5,222.88-1,290.83

Finding the Fourth Proportional to 3,480.57, 5,222.88 and 1,290.83

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Solution

The fourth proportional to 3,480.57, 5,222.88 and 1,290.83 is: 1,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.57 : 5,222.88 = 1,290.83 : x
  2. Step 2: Convert to fraction form
    3,480.57/5,222.88 = 1,290.83/x
  3. Step 3: Cross multiply
    3,480.57x = 5,222.88 × 1,290.83
  4. Step 4: Simplify right side
    3,480.57x = 6,741,850.19
  5. Step 5: Solve for x
    x = 6,741,850.19/3,480.57
  6. Step 6: Final answer
    x = 1,937.00

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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.