Home / 1,765.58-2,646.26-724.94

Finding the Fourth Proportional to 1,765.58, 2,646.26 and 724.94

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Solution

The fourth proportional to 1,765.58, 2,646.26 and 724.94 is: 1,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.58 : 2,646.26 = 724.94 : x
  2. Step 2: Convert to fraction form
    1,765.58/2,646.26 = 724.94/x
  3. Step 3: Cross multiply
    1,765.58x = 2,646.26 × 724.94
  4. Step 4: Simplify right side
    1,765.58x = 1,918,379.72
  5. Step 5: Solve for x
    x = 1,918,379.72/1,765.58
  6. Step 6: Final answer
    x = 1,086.54

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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.