Home / 5,457.25-8,186.21-1,561.96

Finding the Fourth Proportional to 5,457.25, 8,186.21 and 1,561.96

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Solution

The fourth proportional to 5,457.25, 8,186.21 and 1,561.96 is: 2,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.25 : 8,186.21 = 1,561.96 : x
  2. Step 2: Convert to fraction form
    5,457.25/8,186.21 = 1,561.96/x
  3. Step 3: Cross multiply
    5,457.25x = 8,186.21 × 1,561.96
  4. Step 4: Simplify right side
    5,457.25x = 12,786,532.57
  5. Step 5: Solve for x
    x = 12,786,532.57/5,457.25
  6. Step 6: Final answer
    x = 2,343.04

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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.