Home / 7,311.36-10,963.62-3,151.20

Finding the Fourth Proportional to 7,311.36, 10,963.62 and 3,151.20

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Solution

The fourth proportional to 7,311.36, 10,963.62 and 3,151.20 is: 4,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.36 : 10,963.62 = 3,151.20 : x
  2. Step 2: Convert to fraction form
    7,311.36/10,963.62 = 3,151.20/x
  3. Step 3: Cross multiply
    7,311.36x = 10,963.62 × 3,151.20
  4. Step 4: Simplify right side
    7,311.36x = 34,548,559.34
  5. Step 5: Solve for x
    x = 34,548,559.34/7,311.36
  6. Step 6: Final answer
    x = 4,725.33

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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.