Home / 2,213.57-3,317.99-1,172.92

Finding the Fourth Proportional to 2,213.57, 3,317.99 and 1,172.92

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Solution

The fourth proportional to 2,213.57, 3,317.99 and 1,172.92 is: 1,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.57 : 3,317.99 = 1,172.92 : x
  2. Step 2: Convert to fraction form
    2,213.57/3,317.99 = 1,172.92/x
  3. Step 3: Cross multiply
    2,213.57x = 3,317.99 × 1,172.92
  4. Step 4: Simplify right side
    2,213.57x = 3,891,733.90
  5. Step 5: Solve for x
    x = 3,891,733.90/2,213.57
  6. Step 6: Final answer
    x = 1,758.13

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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.