Home / 1,370.22-2,055.08-396.08

Finding the Fourth Proportional to 1,370.22, 2,055.08 and 396.08

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Solution

The fourth proportional to 1,370.22, 2,055.08 and 396.08 is: 594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.22 : 2,055.08 = 396.08 : x
  2. Step 2: Convert to fraction form
    1,370.22/2,055.08 = 396.08/x
  3. Step 3: Cross multiply
    1,370.22x = 2,055.08 × 396.08
  4. Step 4: Simplify right side
    1,370.22x = 813,976.09
  5. Step 5: Solve for x
    x = 813,976.09/1,370.22
  6. Step 6: Final answer
    x = 594.05

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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.