Home / 6,423.06-8,862.44-3,906.48

Finding the Fourth Proportional to 6,423.06, 8,862.44 and 3,906.48

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Solution

The fourth proportional to 6,423.06, 8,862.44 and 3,906.48 is: 5,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.06 : 8,862.44 = 3,906.48 : x
  2. Step 2: Convert to fraction form
    6,423.06/8,862.44 = 3,906.48/x
  3. Step 3: Cross multiply
    6,423.06x = 8,862.44 × 3,906.48
  4. Step 4: Simplify right side
    6,423.06x = 34,620,944.61
  5. Step 5: Solve for x
    x = 34,620,944.61/6,423.06
  6. Step 6: Final answer
    x = 5,390.10

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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.