Home / 1,748.14-2,622.20-515.56

Finding the Fourth Proportional to 1,748.14, 2,622.20 and 515.56

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Solution

The fourth proportional to 1,748.14, 2,622.20 and 515.56 is: 773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.14 : 2,622.20 = 515.56 : x
  2. Step 2: Convert to fraction form
    1,748.14/2,622.20 = 515.56/x
  3. Step 3: Cross multiply
    1,748.14x = 2,622.20 × 515.56
  4. Step 4: Simplify right side
    1,748.14x = 1,351,901.43
  5. Step 5: Solve for x
    x = 1,351,901.43/1,748.14
  6. Step 6: Final answer
    x = 773.34

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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.