Home / 5,089.32-7,631.22-1,577.81

Finding the Fourth Proportional to 5,089.32, 7,631.22 and 1,577.81

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Solution

The fourth proportional to 5,089.32, 7,631.22 and 1,577.81 is: 2,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.32 : 7,631.22 = 1,577.81 : x
  2. Step 2: Convert to fraction form
    5,089.32/7,631.22 = 1,577.81/x
  3. Step 3: Cross multiply
    5,089.32x = 7,631.22 × 1,577.81
  4. Step 4: Simplify right side
    5,089.32x = 12,040,640.22
  5. Step 5: Solve for x
    x = 12,040,640.22/5,089.32
  6. Step 6: Final answer
    x = 2,365.86

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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.