Home / 3,198.22-4,412.49-1,870.99

Finding the Fourth Proportional to 3,198.22, 4,412.49 and 1,870.99

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Solution

The fourth proportional to 3,198.22, 4,412.49 and 1,870.99 is: 2,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.22 : 4,412.49 = 1,870.99 : x
  2. Step 2: Convert to fraction form
    3,198.22/4,412.49 = 1,870.99/x
  3. Step 3: Cross multiply
    3,198.22x = 4,412.49 × 1,870.99
  4. Step 4: Simplify right side
    3,198.22x = 8,255,724.67
  5. Step 5: Solve for x
    x = 8,255,724.67/3,198.22
  6. Step 6: Final answer
    x = 2,581.35

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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.