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Finding the Fourth Proportional to 7,240.35, 10,860.74 and 2,559.71

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Solution

The fourth proportional to 7,240.35, 10,860.74 and 2,559.71 is: 3,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.35 : 10,860.74 = 2,559.71 : x
  2. Step 2: Convert to fraction form
    7,240.35/10,860.74 = 2,559.71/x
  3. Step 3: Cross multiply
    7,240.35x = 10,860.74 × 2,559.71
  4. Step 4: Simplify right side
    7,240.35x = 27,800,277.68
  5. Step 5: Solve for x
    x = 27,800,277.68/7,240.35
  6. Step 6: Final answer
    x = 3,839.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.