Home / 2,169.32-3,255.35-1,246.68

Finding the Fourth Proportional to 2,169.32, 3,255.35 and 1,246.68

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Solution

The fourth proportional to 2,169.32, 3,255.35 and 1,246.68 is: 1,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.32 : 3,255.35 = 1,246.68 : x
  2. Step 2: Convert to fraction form
    2,169.32/3,255.35 = 1,246.68/x
  3. Step 3: Cross multiply
    2,169.32x = 3,255.35 × 1,246.68
  4. Step 4: Simplify right side
    2,169.32x = 4,058,379.74
  5. Step 5: Solve for x
    x = 4,058,379.74/2,169.32
  6. Step 6: Final answer
    x = 1,870.81

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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.