Home / 4,311.20-6,466.80-4,238.30

Finding the Fourth Proportional to 4,311.20, 6,466.80 and 4,238.30

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Solution

The fourth proportional to 4,311.20, 6,466.80 and 4,238.30 is: 6,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.20 : 6,466.80 = 4,238.30 : x
  2. Step 2: Convert to fraction form
    4,311.20/6,466.80 = 4,238.30/x
  3. Step 3: Cross multiply
    4,311.20x = 6,466.80 × 4,238.30
  4. Step 4: Simplify right side
    4,311.20x = 27,408,238.44
  5. Step 5: Solve for x
    x = 27,408,238.44/4,311.20
  6. Step 6: Final answer
    x = 6,357.45

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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.