Home / 1,759.69-2,639.01-1,450.78

Finding the Fourth Proportional to 1,759.69, 2,639.01 and 1,450.78

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Solution

The fourth proportional to 1,759.69, 2,639.01 and 1,450.78 is: 2,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,759.69 : 2,639.01 = 1,450.78 : x
  2. Step 2: Convert to fraction form
    1,759.69/2,639.01 = 1,450.78/x
  3. Step 3: Cross multiply
    1,759.69x = 2,639.01 × 1,450.78
  4. Step 4: Simplify right side
    1,759.69x = 3,828,621.77
  5. Step 5: Solve for x
    x = 3,828,621.77/1,759.69
  6. Step 6: Final answer
    x = 2,175.73

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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.