Home / 2,184.75-3,014.85-1,189.97

Finding the Fourth Proportional to 2,184.75, 3,014.85 and 1,189.97

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Solution

The fourth proportional to 2,184.75, 3,014.85 and 1,189.97 is: 1,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.75 : 3,014.85 = 1,189.97 : x
  2. Step 2: Convert to fraction form
    2,184.75/3,014.85 = 1,189.97/x
  3. Step 3: Cross multiply
    2,184.75x = 3,014.85 × 1,189.97
  4. Step 4: Simplify right side
    2,184.75x = 3,587,565.98
  5. Step 5: Solve for x
    x = 3,587,565.98/2,184.75
  6. Step 6: Final answer
    x = 1,642.09

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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.