Home / 5,388.06-8,078.64-2,575.74

Finding the Fourth Proportional to 5,388.06, 8,078.64 and 2,575.74

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Solution

The fourth proportional to 5,388.06, 8,078.64 and 2,575.74 is: 3,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.06 : 8,078.64 = 2,575.74 : x
  2. Step 2: Convert to fraction form
    5,388.06/8,078.64 = 2,575.74/x
  3. Step 3: Cross multiply
    5,388.06x = 8,078.64 × 2,575.74
  4. Step 4: Simplify right side
    5,388.06x = 20,808,476.19
  5. Step 5: Solve for x
    x = 20,808,476.19/5,388.06
  6. Step 6: Final answer
    x = 3,861.96

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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.