Home / 1,721.26-2,581.04-1,227.40

Finding the Fourth Proportional to 1,721.26, 2,581.04 and 1,227.40

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Solution

The fourth proportional to 1,721.26, 2,581.04 and 1,227.40 is: 1,840.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.26 : 2,581.04 = 1,227.40 : x
  2. Step 2: Convert to fraction form
    1,721.26/2,581.04 = 1,227.40/x
  3. Step 3: Cross multiply
    1,721.26x = 2,581.04 × 1,227.40
  4. Step 4: Simplify right side
    1,721.26x = 3,167,968.50
  5. Step 5: Solve for x
    x = 3,167,968.50/1,721.26
  6. Step 6: Final answer
    x = 1,840.49

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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.