Home / 3,728.79-5,136.84-2,607.63

Finding the Fourth Proportional to 3,728.79, 5,136.84 and 2,607.63

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Solution

The fourth proportional to 3,728.79, 5,136.84 and 2,607.63 is: 3,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.79 : 5,136.84 = 2,607.63 : x
  2. Step 2: Convert to fraction form
    3,728.79/5,136.84 = 2,607.63/x
  3. Step 3: Cross multiply
    3,728.79x = 5,136.84 × 2,607.63
  4. Step 4: Simplify right side
    3,728.79x = 13,394,978.09
  5. Step 5: Solve for x
    x = 13,394,978.09/3,728.79
  6. Step 6: Final answer
    x = 3,592.31

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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.