Home / 3,105.18-4,282.25-2,099.16

Finding the Fourth Proportional to 3,105.18, 4,282.25 and 2,099.16

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Solution

The fourth proportional to 3,105.18, 4,282.25 and 2,099.16 is: 2,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.18 : 4,282.25 = 2,099.16 : x
  2. Step 2: Convert to fraction form
    3,105.18/4,282.25 = 2,099.16/x
  3. Step 3: Cross multiply
    3,105.18x = 4,282.25 × 2,099.16
  4. Step 4: Simplify right side
    3,105.18x = 8,989,117.41
  5. Step 5: Solve for x
    x = 8,989,117.41/3,105.18
  6. Step 6: Final answer
    x = 2,894.88

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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.