Home / 3,122.59-4,679.25-1,271.44

Finding the Fourth Proportional to 3,122.59, 4,679.25 and 1,271.44

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Solution

The fourth proportional to 3,122.59, 4,679.25 and 1,271.44 is: 1,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.59 : 4,679.25 = 1,271.44 : x
  2. Step 2: Convert to fraction form
    3,122.59/4,679.25 = 1,271.44/x
  3. Step 3: Cross multiply
    3,122.59x = 4,679.25 × 1,271.44
  4. Step 4: Simplify right side
    3,122.59x = 5,949,385.62
  5. Step 5: Solve for x
    x = 5,949,385.62/3,122.59
  6. Step 6: Final answer
    x = 1,905.27

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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.