Home / 3,883.76-5,359.60-2,311.84

Finding the Fourth Proportional to 3,883.76, 5,359.60 and 2,311.84

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Solution

The fourth proportional to 3,883.76, 5,359.60 and 2,311.84 is: 3,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.76 : 5,359.60 = 2,311.84 : x
  2. Step 2: Convert to fraction form
    3,883.76/5,359.60 = 2,311.84/x
  3. Step 3: Cross multiply
    3,883.76x = 5,359.60 × 2,311.84
  4. Step 4: Simplify right side
    3,883.76x = 12,390,537.66
  5. Step 5: Solve for x
    x = 12,390,537.66/3,883.76
  6. Step 6: Final answer
    x = 3,190.35

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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.