Home / 3,116.28-4,295.01-2,772.75

Finding the Fourth Proportional to 3,116.28, 4,295.01 and 2,772.75

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Solution

The fourth proportional to 3,116.28, 4,295.01 and 2,772.75 is: 3,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.28 : 4,295.01 = 2,772.75 : x
  2. Step 2: Convert to fraction form
    3,116.28/4,295.01 = 2,772.75/x
  3. Step 3: Cross multiply
    3,116.28x = 4,295.01 × 2,772.75
  4. Step 4: Simplify right side
    3,116.28x = 11,908,988.98
  5. Step 5: Solve for x
    x = 11,908,988.98/3,116.28
  6. Step 6: Final answer
    x = 3,821.54

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Half scale
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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.