Home / 4,220.64-6,334.93-2,142.13

Finding the Fourth Proportional to 4,220.64, 6,334.93 and 2,142.13

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Solution

The fourth proportional to 4,220.64, 6,334.93 and 2,142.13 is: 3,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.64 : 6,334.93 = 2,142.13 : x
  2. Step 2: Convert to fraction form
    4,220.64/6,334.93 = 2,142.13/x
  3. Step 3: Cross multiply
    4,220.64x = 6,334.93 × 2,142.13
  4. Step 4: Simplify right side
    4,220.64x = 13,570,243.60
  5. Step 5: Solve for x
    x = 13,570,243.60/4,220.64
  6. Step 6: Final answer
    x = 3,215.21

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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.