Home / 4,212.60-5,807.68-3,151.92

Finding the Fourth Proportional to 4,212.60, 5,807.68 and 3,151.92

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Solution

The fourth proportional to 4,212.60, 5,807.68 and 3,151.92 is: 4,345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.60 : 5,807.68 = 3,151.92 : x
  2. Step 2: Convert to fraction form
    4,212.60/5,807.68 = 3,151.92/x
  3. Step 3: Cross multiply
    4,212.60x = 5,807.68 × 3,151.92
  4. Step 4: Simplify right side
    4,212.60x = 18,305,342.75
  5. Step 5: Solve for x
    x = 18,305,342.75/4,212.60
  6. Step 6: Final answer
    x = 4,345.38

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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.