Home / 3,211.13-4,431.83-1,885.56

Finding the Fourth Proportional to 3,211.13, 4,431.83 and 1,885.56

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Solution

The fourth proportional to 3,211.13, 4,431.83 and 1,885.56 is: 2,602.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.13 : 4,431.83 = 1,885.56 : x
  2. Step 2: Convert to fraction form
    3,211.13/4,431.83 = 1,885.56/x
  3. Step 3: Cross multiply
    3,211.13x = 4,431.83 × 1,885.56
  4. Step 4: Simplify right side
    3,211.13x = 8,356,481.37
  5. Step 5: Solve for x
    x = 8,356,481.37/3,211.13
  6. Step 6: Final answer
    x = 2,602.35

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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.