Home / 3,612.93-5,418.79-1,422.29

Finding the Fourth Proportional to 3,612.93, 5,418.79 and 1,422.29

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Solution

The fourth proportional to 3,612.93, 5,418.79 and 1,422.29 is: 2,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.93 : 5,418.79 = 1,422.29 : x
  2. Step 2: Convert to fraction form
    3,612.93/5,418.79 = 1,422.29/x
  3. Step 3: Cross multiply
    3,612.93x = 5,418.79 × 1,422.29
  4. Step 4: Simplify right side
    3,612.93x = 7,707,056.62
  5. Step 5: Solve for x
    x = 7,707,056.62/3,612.93
  6. Step 6: Final answer
    x = 2,133.19

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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.