Home / 3,188.16-4,399.68-2,009.76

Finding the Fourth Proportional to 3,188.16, 4,399.68 and 2,009.76

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Solution

The fourth proportional to 3,188.16, 4,399.68 and 2,009.76 is: 2,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.16 : 4,399.68 = 2,009.76 : x
  2. Step 2: Convert to fraction form
    3,188.16/4,399.68 = 2,009.76/x
  3. Step 3: Cross multiply
    3,188.16x = 4,399.68 × 2,009.76
  4. Step 4: Simplify right side
    3,188.16x = 8,842,300.88
  5. Step 5: Solve for x
    x = 8,842,300.88/3,188.16
  6. Step 6: Final answer
    x = 2,773.48

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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.