Home / 5,457.30-8,188.37-2,859.63

Finding the Fourth Proportional to 5,457.30, 8,188.37 and 2,859.63

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Solution

The fourth proportional to 5,457.30, 8,188.37 and 2,859.63 is: 4,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.30 : 8,188.37 = 2,859.63 : x
  2. Step 2: Convert to fraction form
    5,457.30/8,188.37 = 2,859.63/x
  3. Step 3: Cross multiply
    5,457.30x = 8,188.37 × 2,859.63
  4. Step 4: Simplify right side
    5,457.30x = 23,415,708.50
  5. Step 5: Solve for x
    x = 23,415,708.50/5,457.30
  6. Step 6: Final answer
    x = 4,290.71

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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.