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Finding the Fourth Proportional to 7,326.63, 10,984.68 and 3,428.91

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Solution

The fourth proportional to 7,326.63, 10,984.68 and 3,428.91 is: 5,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.63 : 10,984.68 = 3,428.91 : x
  2. Step 2: Convert to fraction form
    7,326.63/10,984.68 = 3,428.91/x
  3. Step 3: Cross multiply
    7,326.63x = 10,984.68 × 3,428.91
  4. Step 4: Simplify right side
    7,326.63x = 37,665,479.10
  5. Step 5: Solve for x
    x = 37,665,479.10/7,326.63
  6. Step 6: Final answer
    x = 5,140.90

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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.