Home / 2,201.72-3,038.10-1,257.62

Finding the Fourth Proportional to 2,201.72, 3,038.10 and 1,257.62

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Solution

The fourth proportional to 2,201.72, 3,038.10 and 1,257.62 is: 1,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.72 : 3,038.10 = 1,257.62 : x
  2. Step 2: Convert to fraction form
    2,201.72/3,038.10 = 1,257.62/x
  3. Step 3: Cross multiply
    2,201.72x = 3,038.10 × 1,257.62
  4. Step 4: Simplify right side
    2,201.72x = 3,820,775.32
  5. Step 5: Solve for x
    x = 3,820,775.32/2,201.72
  6. Step 6: Final answer
    x = 1,735.36

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1.5x scale

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.