Home / 2,331.93-3,218.22-1,284.06

Finding the Fourth Proportional to 2,331.93, 3,218.22 and 1,284.06

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Solution

The fourth proportional to 2,331.93, 3,218.22 and 1,284.06 is: 1,772.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.93 : 3,218.22 = 1,284.06 : x
  2. Step 2: Convert to fraction form
    2,331.93/3,218.22 = 1,284.06/x
  3. Step 3: Cross multiply
    2,331.93x = 3,218.22 × 1,284.06
  4. Step 4: Simplify right side
    2,331.93x = 4,132,387.57
  5. Step 5: Solve for x
    x = 4,132,387.57/2,331.93
  6. Step 6: Final answer
    x = 1,772.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.