Home / 3,223.52-4,448.69-1,861.20

Finding the Fourth Proportional to 3,223.52, 4,448.69 and 1,861.20

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Solution

The fourth proportional to 3,223.52, 4,448.69 and 1,861.20 is: 2,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.52 : 4,448.69 = 1,861.20 : x
  2. Step 2: Convert to fraction form
    3,223.52/4,448.69 = 1,861.20/x
  3. Step 3: Cross multiply
    3,223.52x = 4,448.69 × 1,861.20
  4. Step 4: Simplify right side
    3,223.52x = 8,279,899.50
  5. Step 5: Solve for x
    x = 8,279,899.50/3,223.52
  6. Step 6: Final answer
    x = 2,568.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.