Home / 3,203.25-4,420.82-1,878.06

Finding the Fourth Proportional to 3,203.25, 4,420.82 and 1,878.06

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Solution

The fourth proportional to 3,203.25, 4,420.82 and 1,878.06 is: 2,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.25 : 4,420.82 = 1,878.06 : x
  2. Step 2: Convert to fraction form
    3,203.25/4,420.82 = 1,878.06/x
  3. Step 3: Cross multiply
    3,203.25x = 4,420.82 × 1,878.06
  4. Step 4: Simplify right side
    3,203.25x = 8,302,565.21
  5. Step 5: Solve for x
    x = 8,302,565.21/3,203.25
  6. Step 6: Final answer
    x = 2,591.92

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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.