Home / 6,631.79-9,945.57-2,188.62

Finding the Fourth Proportional to 6,631.79, 9,945.57 and 2,188.62

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Solution

The fourth proportional to 6,631.79, 9,945.57 and 2,188.62 is: 3,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.79 : 9,945.57 = 2,188.62 : x
  2. Step 2: Convert to fraction form
    6,631.79/9,945.57 = 2,188.62/x
  3. Step 3: Cross multiply
    6,631.79x = 9,945.57 × 2,188.62
  4. Step 4: Simplify right side
    6,631.79x = 21,767,111.27
  5. Step 5: Solve for x
    x = 21,767,111.27/6,631.79
  6. Step 6: Final answer
    x = 3,282.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.