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Finding the Fourth Proportional to 5,484.78, 7,560.92 and 3,886.49

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Solution

The fourth proportional to 5,484.78, 7,560.92 and 3,886.49 is: 5,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,484.78 : 7,560.92 = 3,886.49 : x
  2. Step 2: Convert to fraction form
    5,484.78/7,560.92 = 3,886.49/x
  3. Step 3: Cross multiply
    5,484.78x = 7,560.92 × 3,886.49
  4. Step 4: Simplify right side
    5,484.78x = 29,385,420.54
  5. Step 5: Solve for x
    x = 29,385,420.54/5,484.78
  6. Step 6: Final answer
    x = 5,357.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.