Home / 3,159.83-4,356.50-2,163.39

Finding the Fourth Proportional to 3,159.83, 4,356.50 and 2,163.39

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Solution

The fourth proportional to 3,159.83, 4,356.50 and 2,163.39 is: 2,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.83 : 4,356.50 = 2,163.39 : x
  2. Step 2: Convert to fraction form
    3,159.83/4,356.50 = 2,163.39/x
  3. Step 3: Cross multiply
    3,159.83x = 4,356.50 × 2,163.39
  4. Step 4: Simplify right side
    3,159.83x = 9,424,797.72
  5. Step 5: Solve for x
    x = 9,424,797.72/3,159.83
  6. Step 6: Final answer
    x = 2,982.70

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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.