Home / 1,721.36-2,581.08-1,018.86

Finding the Fourth Proportional to 1,721.36, 2,581.08 and 1,018.86

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Solution

The fourth proportional to 1,721.36, 2,581.08 and 1,018.86 is: 1,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.36 : 2,581.08 = 1,018.86 : x
  2. Step 2: Convert to fraction form
    1,721.36/2,581.08 = 1,018.86/x
  3. Step 3: Cross multiply
    1,721.36x = 2,581.08 × 1,018.86
  4. Step 4: Simplify right side
    1,721.36x = 2,629,759.17
  5. Step 5: Solve for x
    x = 2,629,759.17/1,721.36
  6. Step 6: Final answer
    x = 1,527.72

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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.