Home / 2,685.16-4,028.25-1,299.46

Finding the Fourth Proportional to 2,685.16, 4,028.25 and 1,299.46

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Solution

The fourth proportional to 2,685.16, 4,028.25 and 1,299.46 is: 1,949.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.16 : 4,028.25 = 1,299.46 : x
  2. Step 2: Convert to fraction form
    2,685.16/4,028.25 = 1,299.46/x
  3. Step 3: Cross multiply
    2,685.16x = 4,028.25 × 1,299.46
  4. Step 4: Simplify right side
    2,685.16x = 5,234,549.75
  5. Step 5: Solve for x
    x = 5,234,549.75/2,685.16
  6. Step 6: Final answer
    x = 1,949.44

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Double scale
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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.