Home / 2,247.20-3,099.70-1,806.15

Finding the Fourth Proportional to 2,247.20, 3,099.70 and 1,806.15

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Solution

The fourth proportional to 2,247.20, 3,099.70 and 1,806.15 is: 2,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.20 : 3,099.70 = 1,806.15 : x
  2. Step 2: Convert to fraction form
    2,247.20/3,099.70 = 1,806.15/x
  3. Step 3: Cross multiply
    2,247.20x = 3,099.70 × 1,806.15
  4. Step 4: Simplify right side
    2,247.20x = 5,598,523.16
  5. Step 5: Solve for x
    x = 5,598,523.16/2,247.20
  6. Step 6: Final answer
    x = 2,491.33

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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.