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Finding the Fourth Proportional to 5,294.16, 7,941.09 and 1,398.58

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Solution

The fourth proportional to 5,294.16, 7,941.09 and 1,398.58 is: 2,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.16 : 7,941.09 = 1,398.58 : x
  2. Step 2: Convert to fraction form
    5,294.16/7,941.09 = 1,398.58/x
  3. Step 3: Cross multiply
    5,294.16x = 7,941.09 × 1,398.58
  4. Step 4: Simplify right side
    5,294.16x = 11,106,249.65
  5. Step 5: Solve for x
    x = 11,106,249.65/5,294.16
  6. Step 6: Final answer
    x = 2,097.83

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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.