Home / 5,190.40-7,773.36-3,956.32

Finding the Fourth Proportional to 5,190.40, 7,773.36 and 3,956.32

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Solution

The fourth proportional to 5,190.40, 7,773.36 and 3,956.32 is: 5,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.40 : 7,773.36 = 3,956.32 : x
  2. Step 2: Convert to fraction form
    5,190.40/7,773.36 = 3,956.32/x
  3. Step 3: Cross multiply
    5,190.40x = 7,773.36 × 3,956.32
  4. Step 4: Simplify right side
    5,190.40x = 30,753,899.64
  5. Step 5: Solve for x
    x = 30,753,899.64/5,190.40
  6. Step 6: Final answer
    x = 5,925.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.