Home / 3,778.64-5,214.50-2,100.02

Finding the Fourth Proportional to 3,778.64, 5,214.50 and 2,100.02

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Solution

The fourth proportional to 3,778.64, 5,214.50 and 2,100.02 is: 2,898.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.64 : 5,214.50 = 2,100.02 : x
  2. Step 2: Convert to fraction form
    3,778.64/5,214.50 = 2,100.02/x
  3. Step 3: Cross multiply
    3,778.64x = 5,214.50 × 2,100.02
  4. Step 4: Simplify right side
    3,778.64x = 10,950,554.29
  5. Step 5: Solve for x
    x = 10,950,554.29/3,778.64
  6. Step 6: Final answer
    x = 2,898.01

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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.