Home / 6,617.94-9,131.59-4,379.00

Finding the Fourth Proportional to 6,617.94, 9,131.59 and 4,379.00

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Solution

The fourth proportional to 6,617.94, 9,131.59 and 4,379.00 is: 6,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.94 : 9,131.59 = 4,379.00 : x
  2. Step 2: Convert to fraction form
    6,617.94/9,131.59 = 4,379.00/x
  3. Step 3: Cross multiply
    6,617.94x = 9,131.59 × 4,379.00
  4. Step 4: Simplify right side
    6,617.94x = 39,987,260.91
  5. Step 5: Solve for x
    x = 39,987,260.91/6,617.94
  6. Step 6: Final answer
    x = 6,042.25

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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.