Home / 5,235.78-7,843.29-3,156.33

Finding the Fourth Proportional to 5,235.78, 7,843.29 and 3,156.33

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Solution

The fourth proportional to 5,235.78, 7,843.29 and 3,156.33 is: 4,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.78 : 7,843.29 = 3,156.33 : x
  2. Step 2: Convert to fraction form
    5,235.78/7,843.29 = 3,156.33/x
  3. Step 3: Cross multiply
    5,235.78x = 7,843.29 × 3,156.33
  4. Step 4: Simplify right side
    5,235.78x = 24,756,011.53
  5. Step 5: Solve for x
    x = 24,756,011.53/5,235.78
  6. Step 6: Final answer
    x = 4,728.24

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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.