Home / 4,212.74-6,319.13-1,291.04

Finding the Fourth Proportional to 4,212.74, 6,319.13 and 1,291.04

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Solution

The fourth proportional to 4,212.74, 6,319.13 and 1,291.04 is: 1,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.74 : 6,319.13 = 1,291.04 : x
  2. Step 2: Convert to fraction form
    4,212.74/6,319.13 = 1,291.04/x
  3. Step 3: Cross multiply
    4,212.74x = 6,319.13 × 1,291.04
  4. Step 4: Simplify right side
    4,212.74x = 8,158,249.60
  5. Step 5: Solve for x
    x = 8,158,249.60/4,212.74
  6. Step 6: Final answer
    x = 1,936.57

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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.