Home / 2,849.12-3,930.76-1,730.52

Finding the Fourth Proportional to 2,849.12, 3,930.76 and 1,730.52

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Solution

The fourth proportional to 2,849.12, 3,930.76 and 1,730.52 is: 2,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.12 : 3,930.76 = 1,730.52 : x
  2. Step 2: Convert to fraction form
    2,849.12/3,930.76 = 1,730.52/x
  3. Step 3: Cross multiply
    2,849.12x = 3,930.76 × 1,730.52
  4. Step 4: Simplify right side
    2,849.12x = 6,802,258.80
  5. Step 5: Solve for x
    x = 6,802,258.80/2,849.12
  6. Step 6: Final answer
    x = 2,387.49

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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.