Home / 7,117.87-10,680.66-2,960.74

Finding the Fourth Proportional to 7,117.87, 10,680.66 and 2,960.74

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Solution

The fourth proportional to 7,117.87, 10,680.66 and 2,960.74 is: 4,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.87 : 10,680.66 = 2,960.74 : x
  2. Step 2: Convert to fraction form
    7,117.87/10,680.66 = 2,960.74/x
  3. Step 3: Cross multiply
    7,117.87x = 10,680.66 × 2,960.74
  4. Step 4: Simplify right side
    7,117.87x = 31,622,657.29
  5. Step 5: Solve for x
    x = 31,622,657.29/7,117.87
  6. Step 6: Final answer
    x = 4,442.71

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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.