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Finding the Fourth Proportional to 3,927.03, 5,418.54 and 2,509.63

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Solution

The fourth proportional to 3,927.03, 5,418.54 and 2,509.63 is: 3,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.03 : 5,418.54 = 2,509.63 : x
  2. Step 2: Convert to fraction form
    3,927.03/5,418.54 = 2,509.63/x
  3. Step 3: Cross multiply
    3,927.03x = 5,418.54 × 2,509.63
  4. Step 4: Simplify right side
    3,927.03x = 13,598,530.54
  5. Step 5: Solve for x
    x = 13,598,530.54/3,927.03
  6. Step 6: Final answer
    x = 3,462.80

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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.