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Finding the Fourth Proportional to 3,067.40, 4,601.26 and 876.45

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Solution

The fourth proportional to 3,067.40, 4,601.26 and 876.45 is: 1,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,067.40 : 4,601.26 = 876.45 : x
  2. Step 2: Convert to fraction form
    3,067.40/4,601.26 = 876.45/x
  3. Step 3: Cross multiply
    3,067.40x = 4,601.26 × 876.45
  4. Step 4: Simplify right side
    3,067.40x = 4,032,787.75
  5. Step 5: Solve for x
    x = 4,032,787.75/3,067.40
  6. Step 6: Final answer
    x = 1,314.72

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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.