Home / 6,617.36-9,131.31-3,784.79

Finding the Fourth Proportional to 6,617.36, 9,131.31 and 3,784.79

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Solution

The fourth proportional to 6,617.36, 9,131.31 and 3,784.79 is: 5,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.36 : 9,131.31 = 3,784.79 : x
  2. Step 2: Convert to fraction form
    6,617.36/9,131.31 = 3,784.79/x
  3. Step 3: Cross multiply
    6,617.36x = 9,131.31 × 3,784.79
  4. Step 4: Simplify right side
    6,617.36x = 34,560,045.12
  5. Step 5: Solve for x
    x = 34,560,045.12/6,617.36
  6. Step 6: Final answer
    x = 5,222.64

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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.