Home / 4,220.66-6,334.92-2,142.14

Finding the Fourth Proportional to 4,220.66, 6,334.92 and 2,142.14

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Solution

The fourth proportional to 4,220.66, 6,334.92 and 2,142.14 is: 3,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.66 : 6,334.92 = 2,142.14 : x
  2. Step 2: Convert to fraction form
    4,220.66/6,334.92 = 2,142.14/x
  3. Step 3: Cross multiply
    4,220.66x = 6,334.92 × 2,142.14
  4. Step 4: Simplify right side
    4,220.66x = 13,570,285.53
  5. Step 5: Solve for x
    x = 13,570,285.53/4,220.66
  6. Step 6: Final answer
    x = 3,215.20

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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.