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Finding the Fourth Proportional to 1,952.54, 2,928.98 and 654.02

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Solution

The fourth proportional to 1,952.54, 2,928.98 and 654.02 is: 981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,952.54 : 2,928.98 = 654.02 : x
  2. Step 2: Convert to fraction form
    1,952.54/2,928.98 = 654.02/x
  3. Step 3: Cross multiply
    1,952.54x = 2,928.98 × 654.02
  4. Step 4: Simplify right side
    1,952.54x = 1,915,611.50
  5. Step 5: Solve for x
    x = 1,915,611.50/1,952.54
  6. Step 6: Final answer
    x = 981.09

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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.