Home / 3,111.20-4,293.52-1,694.92

Finding the Fourth Proportional to 3,111.20, 4,293.52 and 1,694.92

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Solution

The fourth proportional to 3,111.20, 4,293.52 and 1,694.92 is: 2,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.20 : 4,293.52 = 1,694.92 : x
  2. Step 2: Convert to fraction form
    3,111.20/4,293.52 = 1,694.92/x
  3. Step 3: Cross multiply
    3,111.20x = 4,293.52 × 1,694.92
  4. Step 4: Simplify right side
    3,111.20x = 7,277,172.92
  5. Step 5: Solve for x
    x = 7,277,172.92/3,111.20
  6. Step 6: Final answer
    x = 2,339.02

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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.