Home / 6,653.28-9,178.56-3,857.16

Finding the Fourth Proportional to 6,653.28, 9,178.56 and 3,857.16

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Solution

The fourth proportional to 6,653.28, 9,178.56 and 3,857.16 is: 5,321.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.28 : 9,178.56 = 3,857.16 : x
  2. Step 2: Convert to fraction form
    6,653.28/9,178.56 = 3,857.16/x
  3. Step 3: Cross multiply
    6,653.28x = 9,178.56 × 3,857.16
  4. Step 4: Simplify right side
    6,653.28x = 35,403,174.49
  5. Step 5: Solve for x
    x = 35,403,174.49/6,653.28
  6. Step 6: Final answer
    x = 5,321.16

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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.