Home / 5,456.85-8,185.27-1,561.26

Finding the Fourth Proportional to 5,456.85, 8,185.27 and 1,561.26

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Solution

The fourth proportional to 5,456.85, 8,185.27 and 1,561.26 is: 2,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.85 : 8,185.27 = 1,561.26 : x
  2. Step 2: Convert to fraction form
    5,456.85/8,185.27 = 1,561.26/x
  3. Step 3: Cross multiply
    5,456.85x = 8,185.27 × 1,561.26
  4. Step 4: Simplify right side
    5,456.85x = 12,779,318.32
  5. Step 5: Solve for x
    x = 12,779,318.32/5,456.85
  6. Step 6: Final answer
    x = 2,341.88

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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.