Home / 1,748.73-2,622.31-515.70

Finding the Fourth Proportional to 1,748.73, 2,622.31 and 515.70

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Solution

The fourth proportional to 1,748.73, 2,622.31 and 515.70 is: 773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.73 : 2,622.31 = 515.70 : x
  2. Step 2: Convert to fraction form
    1,748.73/2,622.31 = 515.70/x
  3. Step 3: Cross multiply
    1,748.73x = 2,622.31 × 515.70
  4. Step 4: Simplify right side
    1,748.73x = 1,352,325.27
  5. Step 5: Solve for x
    x = 1,352,325.27/1,748.73
  6. Step 6: Final answer
    x = 773.32

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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.