Home / 4,212.40-6,331.20-3,486.64

Finding the Fourth Proportional to 4,212.40, 6,331.20 and 3,486.64

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Solution

The fourth proportional to 4,212.40, 6,331.20 and 3,486.64 is: 5,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.40 : 6,331.20 = 3,486.64 : x
  2. Step 2: Convert to fraction form
    4,212.40/6,331.20 = 3,486.64/x
  3. Step 3: Cross multiply
    4,212.40x = 6,331.20 × 3,486.64
  4. Step 4: Simplify right side
    4,212.40x = 22,074,615.17
  5. Step 5: Solve for x
    x = 22,074,615.17/4,212.40
  6. Step 6: Final answer
    x = 5,240.39

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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.