Home / 1,759.28-2,639.88-1,488.56

Finding the Fourth Proportional to 1,759.28, 2,639.88 and 1,488.56

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Solution

The fourth proportional to 1,759.28, 2,639.88 and 1,488.56 is: 2,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.28 : 2,639.88 = 1,488.56 : x
  2. Step 2: Convert to fraction form
    1,759.28/2,639.88 = 1,488.56/x
  3. Step 3: Cross multiply
    1,759.28x = 2,639.88 × 1,488.56
  4. Step 4: Simplify right side
    1,759.28x = 3,929,619.77
  5. Step 5: Solve for x
    x = 3,929,619.77/1,759.28
  6. Step 6: Final answer
    x = 2,233.65

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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.