Home / 3,940.31-5,904.30-2,275.45

Finding the Fourth Proportional to 3,940.31, 5,904.30 and 2,275.45

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Solution

The fourth proportional to 3,940.31, 5,904.30 and 2,275.45 is: 3,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.31 : 5,904.30 = 2,275.45 : x
  2. Step 2: Convert to fraction form
    3,940.31/5,904.30 = 2,275.45/x
  3. Step 3: Cross multiply
    3,940.31x = 5,904.30 × 2,275.45
  4. Step 4: Simplify right side
    3,940.31x = 13,434,928.06
  5. Step 5: Solve for x
    x = 13,434,928.06/3,940.31
  6. Step 6: Final answer
    x = 3,409.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.