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Finding the Fourth Proportional to 7,447.94, 11,171.91 and 1,901.29

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Solution

The fourth proportional to 7,447.94, 11,171.91 and 1,901.29 is: 2,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.94 : 11,171.91 = 1,901.29 : x
  2. Step 2: Convert to fraction form
    7,447.94/11,171.91 = 1,901.29/x
  3. Step 3: Cross multiply
    7,447.94x = 11,171.91 × 1,901.29
  4. Step 4: Simplify right side
    7,447.94x = 21,241,005.70
  5. Step 5: Solve for x
    x = 21,241,005.70/7,447.94
  6. Step 6: Final answer
    x = 2,851.93

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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.