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Finding the Fourth Proportional to 2,571.58, 3,857.39 and 623.79

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Solution

The fourth proportional to 2,571.58, 3,857.39 and 623.79 is: 935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.58 : 3,857.39 = 623.79 : x
  2. Step 2: Convert to fraction form
    2,571.58/3,857.39 = 623.79/x
  3. Step 3: Cross multiply
    2,571.58x = 3,857.39 × 623.79
  4. Step 4: Simplify right side
    2,571.58x = 2,406,201.31
  5. Step 5: Solve for x
    x = 2,406,201.31/2,571.58
  6. Step 6: Final answer
    x = 935.69

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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.