Home / 3,885.06-5,362.48-2,392.78

Finding the Fourth Proportional to 3,885.06, 5,362.48 and 2,392.78

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Solution

The fourth proportional to 3,885.06, 5,362.48 and 2,392.78 is: 3,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.06 : 5,362.48 = 2,392.78 : x
  2. Step 2: Convert to fraction form
    3,885.06/5,362.48 = 2,392.78/x
  3. Step 3: Cross multiply
    3,885.06x = 5,362.48 × 2,392.78
  4. Step 4: Simplify right side
    3,885.06x = 12,831,234.89
  5. Step 5: Solve for x
    x = 12,831,234.89/3,885.06
  6. Step 6: Final answer
    x = 3,302.71

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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.