Home / 3,205.19-4,420.62-2,086.49

Finding the Fourth Proportional to 3,205.19, 4,420.62 and 2,086.49

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Solution

The fourth proportional to 3,205.19, 4,420.62 and 2,086.49 is: 2,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.19 : 4,420.62 = 2,086.49 : x
  2. Step 2: Convert to fraction form
    3,205.19/4,420.62 = 2,086.49/x
  3. Step 3: Cross multiply
    3,205.19x = 4,420.62 × 2,086.49
  4. Step 4: Simplify right side
    3,205.19x = 9,223,557.32
  5. Step 5: Solve for x
    x = 9,223,557.32/3,205.19
  6. Step 6: Final answer
    x = 2,877.70

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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.