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Finding the Fourth Proportional to 3,486.88, 4,812.87 and 2,353.87

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Solution

The fourth proportional to 3,486.88, 4,812.87 and 2,353.87 is: 3,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.88 : 4,812.87 = 2,353.87 : x
  2. Step 2: Convert to fraction form
    3,486.88/4,812.87 = 2,353.87/x
  3. Step 3: Cross multiply
    3,486.88x = 4,812.87 × 2,353.87
  4. Step 4: Simplify right side
    3,486.88x = 11,328,870.31
  5. Step 5: Solve for x
    x = 11,328,870.31/3,486.88
  6. Step 6: Final answer
    x = 3,249.00

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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.