Home / 6,408.24-9,615.06-3,121.32

Finding the Fourth Proportional to 6,408.24, 9,615.06 and 3,121.32

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Solution

The fourth proportional to 6,408.24, 9,615.06 and 3,121.32 is: 4,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.24 : 9,615.06 = 3,121.32 : x
  2. Step 2: Convert to fraction form
    6,408.24/9,615.06 = 3,121.32/x
  3. Step 3: Cross multiply
    6,408.24x = 9,615.06 × 3,121.32
  4. Step 4: Simplify right side
    6,408.24x = 30,011,679.08
  5. Step 5: Solve for x
    x = 30,011,679.08/6,408.24
  6. Step 6: Final answer
    x = 4,683.30

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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.