Home / 7,159.91-9,880.69-4,175.18

Finding the Fourth Proportional to 7,159.91, 9,880.69 and 4,175.18

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Solution

The fourth proportional to 7,159.91, 9,880.69 and 4,175.18 is: 5,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.91 : 9,880.69 = 4,175.18 : x
  2. Step 2: Convert to fraction form
    7,159.91/9,880.69 = 4,175.18/x
  3. Step 3: Cross multiply
    7,159.91x = 9,880.69 × 4,175.18
  4. Step 4: Simplify right side
    7,159.91x = 41,253,659.27
  5. Step 5: Solve for x
    x = 41,253,659.27/7,159.91
  6. Step 6: Final answer
    x = 5,761.76

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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.