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Finding the Fourth Proportional to 7,448.61, 11,172.91 and 1,901.96

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Solution

The fourth proportional to 7,448.61, 11,172.91 and 1,901.96 is: 2,852.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.61 : 11,172.91 = 1,901.96 : x
  2. Step 2: Convert to fraction form
    7,448.61/11,172.91 = 1,901.96/x
  3. Step 3: Cross multiply
    7,448.61x = 11,172.91 × 1,901.96
  4. Step 4: Simplify right side
    7,448.61x = 21,250,427.90
  5. Step 5: Solve for x
    x = 21,250,427.90/7,448.61
  6. Step 6: Final answer
    x = 2,852.94

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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.