Home / 5,353.92-7,378.44-3,859.32

Finding the Fourth Proportional to 5,353.92, 7,378.44 and 3,859.32

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Solution

The fourth proportional to 5,353.92, 7,378.44 and 3,859.32 is: 5,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.92 : 7,378.44 = 3,859.32 : x
  2. Step 2: Convert to fraction form
    5,353.92/7,378.44 = 3,859.32/x
  3. Step 3: Cross multiply
    5,353.92x = 7,378.44 × 3,859.32
  4. Step 4: Simplify right side
    5,353.92x = 28,475,761.06
  5. Step 5: Solve for x
    x = 28,475,761.06/5,353.92
  6. Step 6: Final answer
    x = 5,318.68

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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.