Home / 2,237.20-3,349.63-1,687.72

Finding the Fourth Proportional to 2,237.20, 3,349.63 and 1,687.72

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Solution

The fourth proportional to 2,237.20, 3,349.63 and 1,687.72 is: 2,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.20 : 3,349.63 = 1,687.72 : x
  2. Step 2: Convert to fraction form
    2,237.20/3,349.63 = 1,687.72/x
  3. Step 3: Cross multiply
    2,237.20x = 3,349.63 × 1,687.72
  4. Step 4: Simplify right side
    2,237.20x = 5,653,237.54
  5. Step 5: Solve for x
    x = 5,653,237.54/2,237.20
  6. Step 6: Final answer
    x = 2,526.93

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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.