Home / 2,116.92-3,175.23-730.20

Finding the Fourth Proportional to 2,116.92, 3,175.23 and 730.20

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Solution

The fourth proportional to 2,116.92, 3,175.23 and 730.20 is: 1,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.92 : 3,175.23 = 730.20 : x
  2. Step 2: Convert to fraction form
    2,116.92/3,175.23 = 730.20/x
  3. Step 3: Cross multiply
    2,116.92x = 3,175.23 × 730.20
  4. Step 4: Simplify right side
    2,116.92x = 2,318,552.95
  5. Step 5: Solve for x
    x = 2,318,552.95/2,116.92
  6. Step 6: Final answer
    x = 1,095.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.