Home / 1,929.56-2,660.31-1,265.24

Finding the Fourth Proportional to 1,929.56, 2,660.31 and 1,265.24

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Solution

The fourth proportional to 1,929.56, 2,660.31 and 1,265.24 is: 1,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.56 : 2,660.31 = 1,265.24 : x
  2. Step 2: Convert to fraction form
    1,929.56/2,660.31 = 1,265.24/x
  3. Step 3: Cross multiply
    1,929.56x = 2,660.31 × 1,265.24
  4. Step 4: Simplify right side
    1,929.56x = 3,365,937.28
  5. Step 5: Solve for x
    x = 3,365,937.28/1,929.56
  6. Step 6: Final answer
    x = 1,744.41

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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.