Home / 1,721.48-2,376.08-1,101.56

Finding the Fourth Proportional to 1,721.48, 2,376.08 and 1,101.56

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Solution

The fourth proportional to 1,721.48, 2,376.08 and 1,101.56 is: 1,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.48 : 2,376.08 = 1,101.56 : x
  2. Step 2: Convert to fraction form
    1,721.48/2,376.08 = 1,101.56/x
  3. Step 3: Cross multiply
    1,721.48x = 2,376.08 × 1,101.56
  4. Step 4: Simplify right side
    1,721.48x = 2,617,394.68
  5. Step 5: Solve for x
    x = 2,617,394.68/1,721.48
  6. Step 6: Final answer
    x = 1,520.43

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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.