Home / 2,380.16-3,284.40-1,331.84

Finding the Fourth Proportional to 2,380.16, 3,284.40 and 1,331.84

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Solution

The fourth proportional to 2,380.16, 3,284.40 and 1,331.84 is: 1,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,380.16 : 3,284.40 = 1,331.84 : x
  2. Step 2: Convert to fraction form
    2,380.16/3,284.40 = 1,331.84/x
  3. Step 3: Cross multiply
    2,380.16x = 3,284.40 × 1,331.84
  4. Step 4: Simplify right side
    2,380.16x = 4,374,295.30
  5. Step 5: Solve for x
    x = 4,374,295.30/2,380.16
  6. Step 6: Final answer
    x = 1,837.82

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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.