Home / 1,370.35-2,055.83-396.42

Finding the Fourth Proportional to 1,370.35, 2,055.83 and 396.42

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Solution

The fourth proportional to 1,370.35, 2,055.83 and 396.42 is: 594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.35 : 2,055.83 = 396.42 : x
  2. Step 2: Convert to fraction form
    1,370.35/2,055.83 = 396.42/x
  3. Step 3: Cross multiply
    1,370.35x = 2,055.83 × 396.42
  4. Step 4: Simplify right side
    1,370.35x = 814,959.87
  5. Step 5: Solve for x
    x = 814,959.87/1,370.35
  6. Step 6: Final answer
    x = 594.71

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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.