Home / 6,420.46-8,860.26-3,767.92

Finding the Fourth Proportional to 6,420.46, 8,860.26 and 3,767.92

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Solution

The fourth proportional to 6,420.46, 8,860.26 and 3,767.92 is: 5,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.46 : 8,860.26 = 3,767.92 : x
  2. Step 2: Convert to fraction form
    6,420.46/8,860.26 = 3,767.92/x
  3. Step 3: Cross multiply
    6,420.46x = 8,860.26 × 3,767.92
  4. Step 4: Simplify right side
    6,420.46x = 33,384,750.86
  5. Step 5: Solve for x
    x = 33,384,750.86/6,420.46
  6. Step 6: Final answer
    x = 5,199.74

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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.