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Finding the Fourth Proportional to 5,360.93, 7,398.08 and 2,938.28

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Solution

The fourth proportional to 5,360.93, 7,398.08 and 2,938.28 is: 4,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.93 : 7,398.08 = 2,938.28 : x
  2. Step 2: Convert to fraction form
    5,360.93/7,398.08 = 2,938.28/x
  3. Step 3: Cross multiply
    5,360.93x = 7,398.08 × 2,938.28
  4. Step 4: Simplify right side
    5,360.93x = 21,737,578.82
  5. Step 5: Solve for x
    x = 21,737,578.82/5,360.93
  6. Step 6: Final answer
    x = 4,054.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.