Home / 1,636.23-2,449.85-1,143.13

Finding the Fourth Proportional to 1,636.23, 2,449.85 and 1,143.13

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Solution

The fourth proportional to 1,636.23, 2,449.85 and 1,143.13 is: 1,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.23 : 2,449.85 = 1,143.13 : x
  2. Step 2: Convert to fraction form
    1,636.23/2,449.85 = 1,143.13/x
  3. Step 3: Cross multiply
    1,636.23x = 2,449.85 × 1,143.13
  4. Step 4: Simplify right side
    1,636.23x = 2,800,497.03
  5. Step 5: Solve for x
    x = 2,800,497.03/1,636.23
  6. Step 6: Final answer
    x = 1,711.55

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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.