Home / 3,808.45-5,712.15-1,342.96

Finding the Fourth Proportional to 3,808.45, 5,712.15 and 1,342.96

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Solution

The fourth proportional to 3,808.45, 5,712.15 and 1,342.96 is: 2,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.45 : 5,712.15 = 1,342.96 : x
  2. Step 2: Convert to fraction form
    3,808.45/5,712.15 = 1,342.96/x
  3. Step 3: Cross multiply
    3,808.45x = 5,712.15 × 1,342.96
  4. Step 4: Simplify right side
    3,808.45x = 7,671,188.96
  5. Step 5: Solve for x
    x = 7,671,188.96/3,808.45
  6. Step 6: Final answer
    x = 2,014.25

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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.