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Finding the Fourth Proportional to 1,747.74, 2,621.87 and 577.37

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Solution

The fourth proportional to 1,747.74, 2,621.87 and 577.37 is: 866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.74 : 2,621.87 = 577.37 : x
  2. Step 2: Convert to fraction form
    1,747.74/2,621.87 = 577.37/x
  3. Step 3: Cross multiply
    1,747.74x = 2,621.87 × 577.37
  4. Step 4: Simplify right side
    1,747.74x = 1,513,773.09
  5. Step 5: Solve for x
    x = 1,513,773.09/1,747.74
  6. Step 6: Final answer
    x = 866.13

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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.