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Finding the Fourth Proportional to 5,351.57, 7,385.16 and 2,993.76

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Solution

The fourth proportional to 5,351.57, 7,385.16 and 2,993.76 is: 4,131.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.57 : 7,385.16 = 2,993.76 : x
  2. Step 2: Convert to fraction form
    5,351.57/7,385.16 = 2,993.76/x
  3. Step 3: Cross multiply
    5,351.57x = 7,385.16 × 2,993.76
  4. Step 4: Simplify right side
    5,351.57x = 22,109,344.71
  5. Step 5: Solve for x
    x = 22,109,344.71/5,351.57
  6. Step 6: Final answer
    x = 4,131.38

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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.