Home / 5,261.72-7,891.19-1,562.96

Finding the Fourth Proportional to 5,261.72, 7,891.19 and 1,562.96

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Solution

The fourth proportional to 5,261.72, 7,891.19 and 1,562.96 is: 2,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.72 : 7,891.19 = 1,562.96 : x
  2. Step 2: Convert to fraction form
    5,261.72/7,891.19 = 1,562.96/x
  3. Step 3: Cross multiply
    5,261.72x = 7,891.19 × 1,562.96
  4. Step 4: Simplify right side
    5,261.72x = 12,333,567.05
  5. Step 5: Solve for x
    x = 12,333,567.05/5,261.72
  6. Step 6: Final answer
    x = 2,344.02

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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.