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Finding the Fourth Proportional to 2,309.48, 3,460.73 and 1,721.70

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Solution

The fourth proportional to 2,309.48, 3,460.73 and 1,721.70 is: 2,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.48 : 3,460.73 = 1,721.70 : x
  2. Step 2: Convert to fraction form
    2,309.48/3,460.73 = 1,721.70/x
  3. Step 3: Cross multiply
    2,309.48x = 3,460.73 × 1,721.70
  4. Step 4: Simplify right side
    2,309.48x = 5,958,330.23
  5. Step 5: Solve for x
    x = 5,958,330.23/2,309.48
  6. Step 6: Final answer
    x = 2,579.95

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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.