Home / 5,553.36-7,661.80-3,665.88

Finding the Fourth Proportional to 5,553.36, 7,661.80 and 3,665.88

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Solution

The fourth proportional to 5,553.36, 7,661.80 and 3,665.88 is: 5,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.36 : 7,661.80 = 3,665.88 : x
  2. Step 2: Convert to fraction form
    5,553.36/7,661.80 = 3,665.88/x
  3. Step 3: Cross multiply
    5,553.36x = 7,661.80 × 3,665.88
  4. Step 4: Simplify right side
    5,553.36x = 28,087,239.38
  5. Step 5: Solve for x
    x = 28,087,239.38/5,553.36
  6. Step 6: Final answer
    x = 5,057.70

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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.