Home / 6,399.86-8,839.68-4,628.66

Finding the Fourth Proportional to 6,399.86, 8,839.68 and 4,628.66

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Solution

The fourth proportional to 6,399.86, 8,839.68 and 4,628.66 is: 6,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.86 : 8,839.68 = 4,628.66 : x
  2. Step 2: Convert to fraction form
    6,399.86/8,839.68 = 4,628.66/x
  3. Step 3: Cross multiply
    6,399.86x = 8,839.68 × 4,628.66
  4. Step 4: Simplify right side
    6,399.86x = 40,915,873.23
  5. Step 5: Solve for x
    x = 40,915,873.23/6,399.86
  6. Step 6: Final answer
    x = 6,393.25

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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.