Home / 6,400.86-8,833.20-3,606.36

Finding the Fourth Proportional to 6,400.86, 8,833.20 and 3,606.36

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Solution

The fourth proportional to 6,400.86, 8,833.20 and 3,606.36 is: 4,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.86 : 8,833.20 = 3,606.36 : x
  2. Step 2: Convert to fraction form
    6,400.86/8,833.20 = 3,606.36/x
  3. Step 3: Cross multiply
    6,400.86x = 8,833.20 × 3,606.36
  4. Step 4: Simplify right side
    6,400.86x = 31,855,699.15
  5. Step 5: Solve for x
    x = 31,855,699.15/6,400.86
  6. Step 6: Final answer
    x = 4,976.78

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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.