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Finding the Fourth Proportional to 7,834.82, 11,752.29 and 2,640.62

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Solution

The fourth proportional to 7,834.82, 11,752.29 and 2,640.62 is: 3,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,834.82 : 11,752.29 = 2,640.62 : x
  2. Step 2: Convert to fraction form
    7,834.82/11,752.29 = 2,640.62/x
  3. Step 3: Cross multiply
    7,834.82x = 11,752.29 × 2,640.62
  4. Step 4: Simplify right side
    7,834.82x = 31,033,332.02
  5. Step 5: Solve for x
    x = 31,033,332.02/7,834.82
  6. Step 6: Final answer
    x = 3,960.95

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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.