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Finding the Fourth Proportional to 7,269.84, 10,905.47 and 2,886.32

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Solution

The fourth proportional to 7,269.84, 10,905.47 and 2,886.32 is: 4,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,269.84 : 10,905.47 = 2,886.32 : x
  2. Step 2: Convert to fraction form
    7,269.84/10,905.47 = 2,886.32/x
  3. Step 3: Cross multiply
    7,269.84x = 10,905.47 × 2,886.32
  4. Step 4: Simplify right side
    7,269.84x = 31,476,607.21
  5. Step 5: Solve for x
    x = 31,476,607.21/7,269.84
  6. Step 6: Final answer
    x = 4,329.75

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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.