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Finding the Fourth Proportional to 5,569.20, 8,358 and 3,810

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Solution

The fourth proportional to 5,569.20, 8,358 and 3,810 is: 5,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,569.20 : 8,358 = 3,810 : x
  2. Step 2: Convert to fraction form
    5,569.20/8,358 = 3,810/x
  3. Step 3: Cross multiply
    5,569.20x = 8,358 × 3,810
  4. Step 4: Simplify right side
    5,569.20x = 31,843,980
  5. Step 5: Solve for x
    x = 31,843,980/5,569.20
  6. Step 6: Final answer
    x = 5,717.87

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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.