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Finding the Fourth Proportional to 5,244.96, 7,860.96 and 2,648.64

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Solution

The fourth proportional to 5,244.96, 7,860.96 and 2,648.64 is: 3,969.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.96 : 7,860.96 = 2,648.64 : x
  2. Step 2: Convert to fraction form
    5,244.96/7,860.96 = 2,648.64/x
  3. Step 3: Cross multiply
    5,244.96x = 7,860.96 × 2,648.64
  4. Step 4: Simplify right side
    5,244.96x = 20,820,853.09
  5. Step 5: Solve for x
    x = 20,820,853.09/5,244.96
  6. Step 6: Final answer
    x = 3,969.69

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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.