Home / 1,759.23-2,640.15-1,651.68

Finding the Fourth Proportional to 1,759.23, 2,640.15 and 1,651.68

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Solution

The fourth proportional to 1,759.23, 2,640.15 and 1,651.68 is: 2,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.23 : 2,640.15 = 1,651.68 : x
  2. Step 2: Convert to fraction form
    1,759.23/2,640.15 = 1,651.68/x
  3. Step 3: Cross multiply
    1,759.23x = 2,640.15 × 1,651.68
  4. Step 4: Simplify right side
    1,759.23x = 4,360,682.95
  5. Step 5: Solve for x
    x = 4,360,682.95/1,759.23
  6. Step 6: Final answer
    x = 2,478.75

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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.