Home / 3,131.43-4,698.35-1,899.71

Finding the Fourth Proportional to 3,131.43, 4,698.35 and 1,899.71

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Solution

The fourth proportional to 3,131.43, 4,698.35 and 1,899.71 is: 2,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.43 : 4,698.35 = 1,899.71 : x
  2. Step 2: Convert to fraction form
    3,131.43/4,698.35 = 1,899.71/x
  3. Step 3: Cross multiply
    3,131.43x = 4,698.35 × 1,899.71
  4. Step 4: Simplify right side
    3,131.43x = 8,925,502.48
  5. Step 5: Solve for x
    x = 8,925,502.48/3,131.43
  6. Step 6: Final answer
    x = 2,850.30

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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.