Home / 2,612.57-3,918.66-1,226.21

Finding the Fourth Proportional to 2,612.57, 3,918.66 and 1,226.21

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Solution

The fourth proportional to 2,612.57, 3,918.66 and 1,226.21 is: 1,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.57 : 3,918.66 = 1,226.21 : x
  2. Step 2: Convert to fraction form
    2,612.57/3,918.66 = 1,226.21/x
  3. Step 3: Cross multiply
    2,612.57x = 3,918.66 × 1,226.21
  4. Step 4: Simplify right side
    2,612.57x = 4,805,074.35
  5. Step 5: Solve for x
    x = 4,805,074.35/2,612.57
  6. Step 6: Final answer
    x = 1,839.22

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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.