Home / 5,143.96-7,098.32-2,905.92

Finding the Fourth Proportional to 5,143.96, 7,098.32 and 2,905.92

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Solution

The fourth proportional to 5,143.96, 7,098.32 and 2,905.92 is: 4,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.96 : 7,098.32 = 2,905.92 : x
  2. Step 2: Convert to fraction form
    5,143.96/7,098.32 = 2,905.92/x
  3. Step 3: Cross multiply
    5,143.96x = 7,098.32 × 2,905.92
  4. Step 4: Simplify right side
    5,143.96x = 20,627,150.05
  5. Step 5: Solve for x
    x = 20,627,150.05/5,143.96
  6. Step 6: Final answer
    x = 4,009.97

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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.