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Finding the Fourth Proportional to 1,859.38, 2,790.15 and 833.38

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Solution

The fourth proportional to 1,859.38, 2,790.15 and 833.38 is: 1,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.38 : 2,790.15 = 833.38 : x
  2. Step 2: Convert to fraction form
    1,859.38/2,790.15 = 833.38/x
  3. Step 3: Cross multiply
    1,859.38x = 2,790.15 × 833.38
  4. Step 4: Simplify right side
    1,859.38x = 2,325,237.09
  5. Step 5: Solve for x
    x = 2,325,237.09/1,859.38
  6. Step 6: Final answer
    x = 1,250.55

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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.