Home / 1,515.97-2,272.87-1,223.83

Finding the Fourth Proportional to 1,515.97, 2,272.87 and 1,223.83

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Solution

The fourth proportional to 1,515.97, 2,272.87 and 1,223.83 is: 1,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.97 : 2,272.87 = 1,223.83 : x
  2. Step 2: Convert to fraction form
    1,515.97/2,272.87 = 1,223.83/x
  3. Step 3: Cross multiply
    1,515.97x = 2,272.87 × 1,223.83
  4. Step 4: Simplify right side
    1,515.97x = 2,781,606.49
  5. Step 5: Solve for x
    x = 2,781,606.49/1,515.97
  6. Step 6: Final answer
    x = 1,834.87

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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.