Home / 3,868.10-5,337.99-2,099.72

Finding the Fourth Proportional to 3,868.10, 5,337.99 and 2,099.72

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Solution

The fourth proportional to 3,868.10, 5,337.99 and 2,099.72 is: 2,897.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.10 : 5,337.99 = 2,099.72 : x
  2. Step 2: Convert to fraction form
    3,868.10/5,337.99 = 2,099.72/x
  3. Step 3: Cross multiply
    3,868.10x = 5,337.99 × 2,099.72
  4. Step 4: Simplify right side
    3,868.10x = 11,208,284.36
  5. Step 5: Solve for x
    x = 11,208,284.36/3,868.10
  6. Step 6: Final answer
    x = 2,897.62

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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.