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Finding the Fourth Proportional to 2,487.09, 3,729.41 and 927.03

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Solution

The fourth proportional to 2,487.09, 3,729.41 and 927.03 is: 1,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.09 : 3,729.41 = 927.03 : x
  2. Step 2: Convert to fraction form
    2,487.09/3,729.41 = 927.03/x
  3. Step 3: Cross multiply
    2,487.09x = 3,729.41 × 927.03
  4. Step 4: Simplify right side
    2,487.09x = 3,457,258.62
  5. Step 5: Solve for x
    x = 3,457,258.62/2,487.09
  6. Step 6: Final answer
    x = 1,390.08

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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.