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Finding the Fourth Proportional to 3,903.11, 5,854.64 and 1,955.28

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Solution

The fourth proportional to 3,903.11, 5,854.64 and 1,955.28 is: 2,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.11 : 5,854.64 = 1,955.28 : x
  2. Step 2: Convert to fraction form
    3,903.11/5,854.64 = 1,955.28/x
  3. Step 3: Cross multiply
    3,903.11x = 5,854.64 × 1,955.28
  4. Step 4: Simplify right side
    3,903.11x = 11,447,450.72
  5. Step 5: Solve for x
    x = 11,447,450.72/3,903.11
  6. Step 6: Final answer
    x = 2,932.91

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1.5x scale

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.