Home / 5,408.49-8,113.64-1,709.85

Finding the Fourth Proportional to 5,408.49, 8,113.64 and 1,709.85

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Solution

The fourth proportional to 5,408.49, 8,113.64 and 1,709.85 is: 2,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.49 : 8,113.64 = 1,709.85 : x
  2. Step 2: Convert to fraction form
    5,408.49/8,113.64 = 1,709.85/x
  3. Step 3: Cross multiply
    5,408.49x = 8,113.64 × 1,709.85
  4. Step 4: Simplify right side
    5,408.49x = 13,873,098.80
  5. Step 5: Solve for x
    x = 13,873,098.80/5,408.49
  6. Step 6: Final answer
    x = 2,565.06

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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.