Home / 6,320.39-8,722.07-3,487.77

Finding the Fourth Proportional to 6,320.39, 8,722.07 and 3,487.77

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Solution

The fourth proportional to 6,320.39, 8,722.07 and 3,487.77 is: 4,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.39 : 8,722.07 = 3,487.77 : x
  2. Step 2: Convert to fraction form
    6,320.39/8,722.07 = 3,487.77/x
  3. Step 3: Cross multiply
    6,320.39x = 8,722.07 × 3,487.77
  4. Step 4: Simplify right side
    6,320.39x = 30,420,556.65
  5. Step 5: Solve for x
    x = 30,420,556.65/6,320.39
  6. Step 6: Final answer
    x = 4,813.09

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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.