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Finding the Fourth Proportional to 2,701.69, 4,052.97 and 947.16

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Solution

The fourth proportional to 2,701.69, 4,052.97 and 947.16 is: 1,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,701.69 : 4,052.97 = 947.16 : x
  2. Step 2: Convert to fraction form
    2,701.69/4,052.97 = 947.16/x
  3. Step 3: Cross multiply
    2,701.69x = 4,052.97 × 947.16
  4. Step 4: Simplify right side
    2,701.69x = 3,838,811.07
  5. Step 5: Solve for x
    x = 3,838,811.07/2,701.69
  6. Step 6: Final answer
    x = 1,420.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.