Home / 2,679.45-4,013.10-1,695.30

Finding the Fourth Proportional to 2,679.45, 4,013.10 and 1,695.30

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Solution

The fourth proportional to 2,679.45, 4,013.10 and 1,695.30 is: 2,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.45 : 4,013.10 = 1,695.30 : x
  2. Step 2: Convert to fraction form
    2,679.45/4,013.10 = 1,695.30/x
  3. Step 3: Cross multiply
    2,679.45x = 4,013.10 × 1,695.30
  4. Step 4: Simplify right side
    2,679.45x = 6,803,408.43
  5. Step 5: Solve for x
    x = 6,803,408.43/2,679.45
  6. Step 6: Final answer
    x = 2,539.11

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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.