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Finding the Fourth Proportional to 7,371.25, 11,056.88 and 1,899.25

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Solution

The fourth proportional to 7,371.25, 11,056.88 and 1,899.25 is: 2,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.25 : 11,056.88 = 1,899.25 : x
  2. Step 2: Convert to fraction form
    7,371.25/11,056.88 = 1,899.25/x
  3. Step 3: Cross multiply
    7,371.25x = 11,056.88 × 1,899.25
  4. Step 4: Simplify right side
    7,371.25x = 20,999,769.84
  5. Step 5: Solve for x
    x = 20,999,769.84/7,371.25
  6. Step 6: Final answer
    x = 2,848.88

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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.