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Finding the Fourth Proportional to 7,317, 10,976.88 and 2,934.80

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Solution

The fourth proportional to 7,317, 10,976.88 and 2,934.80 is: 4,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317 : 10,976.88 = 2,934.80 : x
  2. Step 2: Convert to fraction form
    7,317/10,976.88 = 2,934.80/x
  3. Step 3: Cross multiply
    7,317x = 10,976.88 × 2,934.80
  4. Step 4: Simplify right side
    7,317x = 32,214,944.71
  5. Step 5: Solve for x
    x = 32,214,944.71/7,317
  6. Step 6: Final answer
    x = 4,402.75

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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.