Home / 2,143.26-3,215.20-844.62

Finding the Fourth Proportional to 2,143.26, 3,215.20 and 844.62

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Solution

The fourth proportional to 2,143.26, 3,215.20 and 844.62 is: 1,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.26 : 3,215.20 = 844.62 : x
  2. Step 2: Convert to fraction form
    2,143.26/3,215.20 = 844.62/x
  3. Step 3: Cross multiply
    2,143.26x = 3,215.20 × 844.62
  4. Step 4: Simplify right side
    2,143.26x = 2,715,622.22
  5. Step 5: Solve for x
    x = 2,715,622.22/2,143.26
  6. Step 6: Final answer
    x = 1,267.05

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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.