Home / 2,116.86-3,175.44-730.18

Finding the Fourth Proportional to 2,116.86, 3,175.44 and 730.18

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Solution

The fourth proportional to 2,116.86, 3,175.44 and 730.18 is: 1,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.86 : 3,175.44 = 730.18 : x
  2. Step 2: Convert to fraction form
    2,116.86/3,175.44 = 730.18/x
  3. Step 3: Cross multiply
    2,116.86x = 3,175.44 × 730.18
  4. Step 4: Simplify right side
    2,116.86x = 2,318,626.90
  5. Step 5: Solve for x
    x = 2,318,626.90/2,116.86
  6. Step 6: Final answer
    x = 1,095.32

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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.