Home / 3,015.78-4,525.20-1,372.11

Finding the Fourth Proportional to 3,015.78, 4,525.20 and 1,372.11

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Solution

The fourth proportional to 3,015.78, 4,525.20 and 1,372.11 is: 2,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.78 : 4,525.20 = 1,372.11 : x
  2. Step 2: Convert to fraction form
    3,015.78/4,525.20 = 1,372.11/x
  3. Step 3: Cross multiply
    3,015.78x = 4,525.20 × 1,372.11
  4. Step 4: Simplify right side
    3,015.78x = 6,209,072.17
  5. Step 5: Solve for x
    x = 6,209,072.17/3,015.78
  6. Step 6: Final answer
    x = 2,058.86

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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.