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Finding the Fourth Proportional to 5,153.66, 7,729.43 and 2,518.46

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Solution

The fourth proportional to 5,153.66, 7,729.43 and 2,518.46 is: 3,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.66 : 7,729.43 = 2,518.46 : x
  2. Step 2: Convert to fraction form
    5,153.66/7,729.43 = 2,518.46/x
  3. Step 3: Cross multiply
    5,153.66x = 7,729.43 × 2,518.46
  4. Step 4: Simplify right side
    5,153.66x = 19,466,238.02
  5. Step 5: Solve for x
    x = 19,466,238.02/5,153.66
  6. Step 6: Final answer
    x = 3,777.17

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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.