Home / 6,113.28-8,436.24-3,722.70

Finding the Fourth Proportional to 6,113.28, 8,436.24 and 3,722.70

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Solution

The fourth proportional to 6,113.28, 8,436.24 and 3,722.70 is: 5,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.28 : 8,436.24 = 3,722.70 : x
  2. Step 2: Convert to fraction form
    6,113.28/8,436.24 = 3,722.70/x
  3. Step 3: Cross multiply
    6,113.28x = 8,436.24 × 3,722.70
  4. Step 4: Simplify right side
    6,113.28x = 31,405,590.65
  5. Step 5: Solve for x
    x = 31,405,590.65/6,113.28
  6. Step 6: Final answer
    x = 5,137.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.