Home / 3,290.36-4,540.73-1,964.72

Finding the Fourth Proportional to 3,290.36, 4,540.73 and 1,964.72

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Solution

The fourth proportional to 3,290.36, 4,540.73 and 1,964.72 is: 2,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.36 : 4,540.73 = 1,964.72 : x
  2. Step 2: Convert to fraction form
    3,290.36/4,540.73 = 1,964.72/x
  3. Step 3: Cross multiply
    3,290.36x = 4,540.73 × 1,964.72
  4. Step 4: Simplify right side
    3,290.36x = 8,921,264.57
  5. Step 5: Solve for x
    x = 8,921,264.57/3,290.36
  6. Step 6: Final answer
    x = 2,711.34

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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.