Home / 3,885.58-5,362.22-2,117.32

Finding the Fourth Proportional to 3,885.58, 5,362.22 and 2,117.32

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Solution

The fourth proportional to 3,885.58, 5,362.22 and 2,117.32 is: 2,921.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.58 : 5,362.22 = 2,117.32 : x
  2. Step 2: Convert to fraction form
    3,885.58/5,362.22 = 2,117.32/x
  3. Step 3: Cross multiply
    3,885.58x = 5,362.22 × 2,117.32
  4. Step 4: Simplify right side
    3,885.58x = 11,353,527.54
  5. Step 5: Solve for x
    x = 11,353,527.54/3,885.58
  6. Step 6: Final answer
    x = 2,921.97

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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.