Home / 7,120.39-10,680.27-2,440.82

Finding the Fourth Proportional to 7,120.39, 10,680.27 and 2,440.82

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Solution

The fourth proportional to 7,120.39, 10,680.27 and 2,440.82 is: 3,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.39 : 10,680.27 = 2,440.82 : x
  2. Step 2: Convert to fraction form
    7,120.39/10,680.27 = 2,440.82/x
  3. Step 3: Cross multiply
    7,120.39x = 10,680.27 × 2,440.82
  4. Step 4: Simplify right side
    7,120.39x = 26,068,616.62
  5. Step 5: Solve for x
    x = 26,068,616.62/7,120.39
  6. Step 6: Final answer
    x = 3,661.12

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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.