Home / 3,160.04-4,359.49-1,980.88

Finding the Fourth Proportional to 3,160.04, 4,359.49 and 1,980.88

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Solution

The fourth proportional to 3,160.04, 4,359.49 and 1,980.88 is: 2,732.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.04 : 4,359.49 = 1,980.88 : x
  2. Step 2: Convert to fraction form
    3,160.04/4,359.49 = 1,980.88/x
  3. Step 3: Cross multiply
    3,160.04x = 4,359.49 × 1,980.88
  4. Step 4: Simplify right side
    3,160.04x = 8,635,610.70
  5. Step 5: Solve for x
    x = 8,635,610.70/3,160.04
  6. Step 6: Final answer
    x = 2,732.76

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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.