Home / 6,115.07-8,438.84-3,320.57

Finding the Fourth Proportional to 6,115.07, 8,438.84 and 3,320.57

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Solution

The fourth proportional to 6,115.07, 8,438.84 and 3,320.57 is: 4,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.07 : 8,438.84 = 3,320.57 : x
  2. Step 2: Convert to fraction form
    6,115.07/8,438.84 = 3,320.57/x
  3. Step 3: Cross multiply
    6,115.07x = 8,438.84 × 3,320.57
  4. Step 4: Simplify right side
    6,115.07x = 28,021,712.59
  5. Step 5: Solve for x
    x = 28,021,712.59/6,115.07
  6. Step 6: Final answer
    x = 4,582.41

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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.