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Finding the Fourth Proportional to 1,733.21, 2,600.78 and 759.29

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Solution

The fourth proportional to 1,733.21, 2,600.78 and 759.29 is: 1,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,733.21 : 2,600.78 = 759.29 : x
  2. Step 2: Convert to fraction form
    1,733.21/2,600.78 = 759.29/x
  3. Step 3: Cross multiply
    1,733.21x = 2,600.78 × 759.29
  4. Step 4: Simplify right side
    1,733.21x = 1,974,729.45
  5. Step 5: Solve for x
    x = 1,974,729.45/1,733.21
  6. Step 6: Final answer
    x = 1,139.35

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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.