Home / 5,918.86-8,166.99-3,400.30

Finding the Fourth Proportional to 5,918.86, 8,166.99 and 3,400.30

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Solution

The fourth proportional to 5,918.86, 8,166.99 and 3,400.30 is: 4,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.86 : 8,166.99 = 3,400.30 : x
  2. Step 2: Convert to fraction form
    5,918.86/8,166.99 = 3,400.30/x
  3. Step 3: Cross multiply
    5,918.86x = 8,166.99 × 3,400.30
  4. Step 4: Simplify right side
    5,918.86x = 27,770,216.10
  5. Step 5: Solve for x
    x = 27,770,216.10/5,918.86
  6. Step 6: Final answer
    x = 4,691.82

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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.