Home / 2,201.50-3,038.21-1,270

Finding the Fourth Proportional to 2,201.50, 3,038.21 and 1,270

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Solution

The fourth proportional to 2,201.50, 3,038.21 and 1,270 is: 1,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.50 : 3,038.21 = 1,270 : x
  2. Step 2: Convert to fraction form
    2,201.50/3,038.21 = 1,270/x
  3. Step 3: Cross multiply
    2,201.50x = 3,038.21 × 1,270
  4. Step 4: Simplify right side
    2,201.50x = 3,858,520.35
  5. Step 5: Solve for x
    x = 3,858,520.35/2,201.50
  6. Step 6: Final answer
    x = 1,752.68

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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.