Home / 6,647.91-9,173.89-3,663.79

Finding the Fourth Proportional to 6,647.91, 9,173.89 and 3,663.79

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Solution

The fourth proportional to 6,647.91, 9,173.89 and 3,663.79 is: 5,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.91 : 9,173.89 = 3,663.79 : x
  2. Step 2: Convert to fraction form
    6,647.91/9,173.89 = 3,663.79/x
  3. Step 3: Cross multiply
    6,647.91x = 9,173.89 × 3,663.79
  4. Step 4: Simplify right side
    6,647.91x = 33,611,206.44
  5. Step 5: Solve for x
    x = 33,611,206.44/6,647.91
  6. Step 6: Final answer
    x = 5,055.91

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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.