Home / 5,408.98-8,118.06-2,124.36

Finding the Fourth Proportional to 5,408.98, 8,118.06 and 2,124.36

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Solution

The fourth proportional to 5,408.98, 8,118.06 and 2,124.36 is: 3,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.98 : 8,118.06 = 2,124.36 : x
  2. Step 2: Convert to fraction form
    5,408.98/8,118.06 = 2,124.36/x
  3. Step 3: Cross multiply
    5,408.98x = 8,118.06 × 2,124.36
  4. Step 4: Simplify right side
    5,408.98x = 17,245,673.98
  5. Step 5: Solve for x
    x = 17,245,673.98/5,408.98
  6. Step 6: Final answer
    x = 3,188.34

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1.5x scale

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.