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Finding the Fourth Proportional to 7,559.09, 11,338.65 and 2,878

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Solution

The fourth proportional to 7,559.09, 11,338.65 and 2,878 is: 4,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,559.09 : 11,338.65 = 2,878 : x
  2. Step 2: Convert to fraction form
    7,559.09/11,338.65 = 2,878/x
  3. Step 3: Cross multiply
    7,559.09x = 11,338.65 × 2,878
  4. Step 4: Simplify right side
    7,559.09x = 32,632,634.70
  5. Step 5: Solve for x
    x = 32,632,634.70/7,559.09
  6. Step 6: Final answer
    x = 4,317.01

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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.