Home / 5,457.45-8,186.96-2,125.04

Finding the Fourth Proportional to 5,457.45, 8,186.96 and 2,125.04

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Solution

The fourth proportional to 5,457.45, 8,186.96 and 2,125.04 is: 3,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.45 : 8,186.96 = 2,125.04 : x
  2. Step 2: Convert to fraction form
    5,457.45/8,186.96 = 2,125.04/x
  3. Step 3: Cross multiply
    5,457.45x = 8,186.96 × 2,125.04
  4. Step 4: Simplify right side
    5,457.45x = 17,397,627.32
  5. Step 5: Solve for x
    x = 17,397,627.32/5,457.45
  6. Step 6: Final answer
    x = 3,187.87

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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.