Home / 3,165.43-4,368.65-1,906.55

Finding the Fourth Proportional to 3,165.43, 4,368.65 and 1,906.55

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Solution

The fourth proportional to 3,165.43, 4,368.65 and 1,906.55 is: 2,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.43 : 4,368.65 = 1,906.55 : x
  2. Step 2: Convert to fraction form
    3,165.43/4,368.65 = 1,906.55/x
  3. Step 3: Cross multiply
    3,165.43x = 4,368.65 × 1,906.55
  4. Step 4: Simplify right side
    3,165.43x = 8,329,049.66
  5. Step 5: Solve for x
    x = 8,329,049.66/3,165.43
  6. Step 6: Final answer
    x = 2,631.25

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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.