Home / 2,189.16-3,284.35-1,215.95

Finding the Fourth Proportional to 2,189.16, 3,284.35 and 1,215.95

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Solution

The fourth proportional to 2,189.16, 3,284.35 and 1,215.95 is: 1,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.16 : 3,284.35 = 1,215.95 : x
  2. Step 2: Convert to fraction form
    2,189.16/3,284.35 = 1,215.95/x
  3. Step 3: Cross multiply
    2,189.16x = 3,284.35 × 1,215.95
  4. Step 4: Simplify right side
    2,189.16x = 3,993,582.88
  5. Step 5: Solve for x
    x = 3,993,582.88/2,189.16
  6. Step 6: Final answer
    x = 1,824.25

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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.