Home / 2,116.06-3,175.28-800.70

Finding the Fourth Proportional to 2,116.06, 3,175.28 and 800.70

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Solution

The fourth proportional to 2,116.06, 3,175.28 and 800.70 is: 1,201.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.06 : 3,175.28 = 800.70 : x
  2. Step 2: Convert to fraction form
    2,116.06/3,175.28 = 800.70/x
  3. Step 3: Cross multiply
    2,116.06x = 3,175.28 × 800.70
  4. Step 4: Simplify right side
    2,116.06x = 2,542,446.70
  5. Step 5: Solve for x
    x = 2,542,446.70/2,116.06
  6. Step 6: Final answer
    x = 1,201.50

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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.