Home / 3,189.31-4,400.85-1,862.83

Finding the Fourth Proportional to 3,189.31, 4,400.85 and 1,862.83

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Solution

The fourth proportional to 3,189.31, 4,400.85 and 1,862.83 is: 2,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.31 : 4,400.85 = 1,862.83 : x
  2. Step 2: Convert to fraction form
    3,189.31/4,400.85 = 1,862.83/x
  3. Step 3: Cross multiply
    3,189.31x = 4,400.85 × 1,862.83
  4. Step 4: Simplify right side
    3,189.31x = 8,198,035.41
  5. Step 5: Solve for x
    x = 8,198,035.41/3,189.31
  6. Step 6: Final answer
    x = 2,570.47

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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.