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Finding the Fourth Proportional to 1,966.95, 2,947.84 and 925.54

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Solution

The fourth proportional to 1,966.95, 2,947.84 and 925.54 is: 1,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.95 : 2,947.84 = 925.54 : x
  2. Step 2: Convert to fraction form
    1,966.95/2,947.84 = 925.54/x
  3. Step 3: Cross multiply
    1,966.95x = 2,947.84 × 925.54
  4. Step 4: Simplify right side
    1,966.95x = 2,728,334.15
  5. Step 5: Solve for x
    x = 2,728,334.15/1,966.95
  6. Step 6: Final answer
    x = 1,387.09

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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.