Home / 5,667.20-7,820.60-3,149.19

Finding the Fourth Proportional to 5,667.20, 7,820.60 and 3,149.19

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Solution

The fourth proportional to 5,667.20, 7,820.60 and 3,149.19 is: 4,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,667.20 : 7,820.60 = 3,149.19 : x
  2. Step 2: Convert to fraction form
    5,667.20/7,820.60 = 3,149.19/x
  3. Step 3: Cross multiply
    5,667.20x = 7,820.60 × 3,149.19
  4. Step 4: Simplify right side
    5,667.20x = 24,628,539.57
  5. Step 5: Solve for x
    x = 24,628,539.57/5,667.20
  6. Step 6: Final answer
    x = 4,345.81

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1.5x scale

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.