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Finding the Fourth Proportional to 6,653.91, 9,981.78 and 2,270.19

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Solution

The fourth proportional to 6,653.91, 9,981.78 and 2,270.19 is: 3,405.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.91 : 9,981.78 = 2,270.19 : x
  2. Step 2: Convert to fraction form
    6,653.91/9,981.78 = 2,270.19/x
  3. Step 3: Cross multiply
    6,653.91x = 9,981.78 × 2,270.19
  4. Step 4: Simplify right side
    6,653.91x = 22,660,525.79
  5. Step 5: Solve for x
    x = 22,660,525.79/6,653.91
  6. Step 6: Final answer
    x = 3,405.60

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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.