Home / 4,217.42-6,329.98-2,138.86

Finding the Fourth Proportional to 4,217.42, 6,329.98 and 2,138.86

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Solution

The fourth proportional to 4,217.42, 6,329.98 and 2,138.86 is: 3,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.42 : 6,329.98 = 2,138.86 : x
  2. Step 2: Convert to fraction form
    4,217.42/6,329.98 = 2,138.86/x
  3. Step 3: Cross multiply
    4,217.42x = 6,329.98 × 2,138.86
  4. Step 4: Simplify right side
    4,217.42x = 13,538,914.72
  5. Step 5: Solve for x
    x = 13,538,914.72/4,217.42
  6. Step 6: Final answer
    x = 3,210.24

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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.