Home / 3,370.72-5,055.91-1,291.72

Finding the Fourth Proportional to 3,370.72, 5,055.91 and 1,291.72

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Solution

The fourth proportional to 3,370.72, 5,055.91 and 1,291.72 is: 1,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.72 : 5,055.91 = 1,291.72 : x
  2. Step 2: Convert to fraction form
    3,370.72/5,055.91 = 1,291.72/x
  3. Step 3: Cross multiply
    3,370.72x = 5,055.91 × 1,291.72
  4. Step 4: Simplify right side
    3,370.72x = 6,530,820.07
  5. Step 5: Solve for x
    x = 6,530,820.07/3,370.72
  6. Step 6: Final answer
    x = 1,937.51

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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.