Home / 4,215.90-6,327.72-2,137.35

Finding the Fourth Proportional to 4,215.90, 6,327.72 and 2,137.35

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Solution

The fourth proportional to 4,215.90, 6,327.72 and 2,137.35 is: 3,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.90 : 6,327.72 = 2,137.35 : x
  2. Step 2: Convert to fraction form
    4,215.90/6,327.72 = 2,137.35/x
  3. Step 3: Cross multiply
    4,215.90x = 6,327.72 × 2,137.35
  4. Step 4: Simplify right side
    4,215.90x = 13,524,552.34
  5. Step 5: Solve for x
    x = 13,524,552.34/4,215.90
  6. Step 6: Final answer
    x = 3,207.99

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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.