Home / 3,509.57-5,261.70-2,122.61

Finding the Fourth Proportional to 3,509.57, 5,261.70 and 2,122.61

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Solution

The fourth proportional to 3,509.57, 5,261.70 and 2,122.61 is: 3,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.57 : 5,261.70 = 2,122.61 : x
  2. Step 2: Convert to fraction form
    3,509.57/5,261.70 = 2,122.61/x
  3. Step 3: Cross multiply
    3,509.57x = 5,261.70 × 2,122.61
  4. Step 4: Simplify right side
    3,509.57x = 11,168,510.73
  5. Step 5: Solve for x
    x = 11,168,510.73/3,509.57
  6. Step 6: Final answer
    x = 3,182.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.