Home / 2,257.72-3,116.50-2,021.24

Finding the Fourth Proportional to 2,257.72, 3,116.50 and 2,021.24

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Solution

The fourth proportional to 2,257.72, 3,116.50 and 2,021.24 is: 2,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.72 : 3,116.50 = 2,021.24 : x
  2. Step 2: Convert to fraction form
    2,257.72/3,116.50 = 2,021.24/x
  3. Step 3: Cross multiply
    2,257.72x = 3,116.50 × 2,021.24
  4. Step 4: Simplify right side
    2,257.72x = 6,299,197.20
  5. Step 5: Solve for x
    x = 6,299,197.20/2,257.72
  6. Step 6: Final answer
    x = 2,790.07

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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.