Home / 5,457.42-8,188.56-2,859.75

Finding the Fourth Proportional to 5,457.42, 8,188.56 and 2,859.75

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Solution

The fourth proportional to 5,457.42, 8,188.56 and 2,859.75 is: 4,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.42 : 8,188.56 = 2,859.75 : x
  2. Step 2: Convert to fraction form
    5,457.42/8,188.56 = 2,859.75/x
  3. Step 3: Cross multiply
    5,457.42x = 8,188.56 × 2,859.75
  4. Step 4: Simplify right side
    5,457.42x = 23,417,234.46
  5. Step 5: Solve for x
    x = 23,417,234.46/5,457.42
  6. Step 6: Final answer
    x = 4,290.90

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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.