Home / 1,393.29-1,924.36-1,246.68

Finding the Fourth Proportional to 1,393.29, 1,924.36 and 1,246.68

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Solution

The fourth proportional to 1,393.29, 1,924.36 and 1,246.68 is: 1,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.29 : 1,924.36 = 1,246.68 : x
  2. Step 2: Convert to fraction form
    1,393.29/1,924.36 = 1,246.68/x
  3. Step 3: Cross multiply
    1,393.29x = 1,924.36 × 1,246.68
  4. Step 4: Simplify right side
    1,393.29x = 2,399,058.01
  5. Step 5: Solve for x
    x = 2,399,058.01/1,393.29
  6. Step 6: Final answer
    x = 1,721.87

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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.