Home / 2,816.10-4,221.18-1,170.99

Finding the Fourth Proportional to 2,816.10, 4,221.18 and 1,170.99

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Solution

The fourth proportional to 2,816.10, 4,221.18 and 1,170.99 is: 1,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.10 : 4,221.18 = 1,170.99 : x
  2. Step 2: Convert to fraction form
    2,816.10/4,221.18 = 1,170.99/x
  3. Step 3: Cross multiply
    2,816.10x = 4,221.18 × 1,170.99
  4. Step 4: Simplify right side
    2,816.10x = 4,942,959.57
  5. Step 5: Solve for x
    x = 4,942,959.57/2,816.10
  6. Step 6: Final answer
    x = 1,755.25

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Half scale
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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.