Home / 3,167.32-4,370.71-1,908.78

Finding the Fourth Proportional to 3,167.32, 4,370.71 and 1,908.78

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Solution

The fourth proportional to 3,167.32, 4,370.71 and 1,908.78 is: 2,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.32 : 4,370.71 = 1,908.78 : x
  2. Step 2: Convert to fraction form
    3,167.32/4,370.71 = 1,908.78/x
  3. Step 3: Cross multiply
    3,167.32x = 4,370.71 × 1,908.78
  4. Step 4: Simplify right side
    3,167.32x = 8,342,730.84
  5. Step 5: Solve for x
    x = 8,342,730.84/3,167.32
  6. Step 6: Final answer
    x = 2,634.00

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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.