Home / 6,261.06-8,640.32-3,428.48

Finding the Fourth Proportional to 6,261.06, 8,640.32 and 3,428.48

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Solution

The fourth proportional to 6,261.06, 8,640.32 and 3,428.48 is: 4,731.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.06 : 8,640.32 = 3,428.48 : x
  2. Step 2: Convert to fraction form
    6,261.06/8,640.32 = 3,428.48/x
  3. Step 3: Cross multiply
    6,261.06x = 8,640.32 × 3,428.48
  4. Step 4: Simplify right side
    6,261.06x = 29,623,103.97
  5. Step 5: Solve for x
    x = 29,623,103.97/6,261.06
  6. Step 6: Final answer
    x = 4,731.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.