Home / 6,408.60-9,612.90-3,456.15

Finding the Fourth Proportional to 6,408.60, 9,612.90 and 3,456.15

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Solution

The fourth proportional to 6,408.60, 9,612.90 and 3,456.15 is: 5,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.60 : 9,612.90 = 3,456.15 : x
  2. Step 2: Convert to fraction form
    6,408.60/9,612.90 = 3,456.15/x
  3. Step 3: Cross multiply
    6,408.60x = 9,612.90 × 3,456.15
  4. Step 4: Simplify right side
    6,408.60x = 33,223,624.34
  5. Step 5: Solve for x
    x = 33,223,624.34/6,408.60
  6. Step 6: Final answer
    x = 5,184.23

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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.