Home / 1,722.36-2,376.54-1,257.24

Finding the Fourth Proportional to 1,722.36, 2,376.54 and 1,257.24

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Solution

The fourth proportional to 1,722.36, 2,376.54 and 1,257.24 is: 1,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.36 : 2,376.54 = 1,257.24 : x
  2. Step 2: Convert to fraction form
    1,722.36/2,376.54 = 1,257.24/x
  3. Step 3: Cross multiply
    1,722.36x = 2,376.54 × 1,257.24
  4. Step 4: Simplify right side
    1,722.36x = 2,987,881.15
  5. Step 5: Solve for x
    x = 2,987,881.15/1,722.36
  6. Step 6: Final answer
    x = 1,734.76

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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.