Home / 3,159.92-4,359.31-1,900.25

Finding the Fourth Proportional to 3,159.92, 4,359.31 and 1,900.25

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Solution

The fourth proportional to 3,159.92, 4,359.31 and 1,900.25 is: 2,621.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.92 : 4,359.31 = 1,900.25 : x
  2. Step 2: Convert to fraction form
    3,159.92/4,359.31 = 1,900.25/x
  3. Step 3: Cross multiply
    3,159.92x = 4,359.31 × 1,900.25
  4. Step 4: Simplify right side
    3,159.92x = 8,283,769.33
  5. Step 5: Solve for x
    x = 8,283,769.33/3,159.92
  6. Step 6: Final answer
    x = 2,621.51

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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.