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Finding the Fourth Proportional to 5,241.48, 7,859.78 and 1,953.69

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Solution

The fourth proportional to 5,241.48, 7,859.78 and 1,953.69 is: 2,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.48 : 7,859.78 = 1,953.69 : x
  2. Step 2: Convert to fraction form
    5,241.48/7,859.78 = 1,953.69/x
  3. Step 3: Cross multiply
    5,241.48x = 7,859.78 × 1,953.69
  4. Step 4: Simplify right side
    5,241.48x = 15,355,552.66
  5. Step 5: Solve for x
    x = 15,355,552.66/5,241.48
  6. Step 6: Final answer
    x = 2,929.62

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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.