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Finding the Fourth Proportional to 6,653.69, 9,980.47 and 2,549.69

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Solution

The fourth proportional to 6,653.69, 9,980.47 and 2,549.69 is: 3,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.69 : 9,980.47 = 2,549.69 : x
  2. Step 2: Convert to fraction form
    6,653.69/9,980.47 = 2,549.69/x
  3. Step 3: Cross multiply
    6,653.69x = 9,980.47 × 2,549.69
  4. Step 4: Simplify right side
    6,653.69x = 25,447,104.55
  5. Step 5: Solve for x
    x = 25,447,104.55/6,653.69
  6. Step 6: Final answer
    x = 3,824.51

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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.