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Finding the Fourth Proportional to 1,874.90, 2,812.16 and 833.94

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Solution

The fourth proportional to 1,874.90, 2,812.16 and 833.94 is: 1,250.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.90 : 2,812.16 = 833.94 : x
  2. Step 2: Convert to fraction form
    1,874.90/2,812.16 = 833.94/x
  3. Step 3: Cross multiply
    1,874.90x = 2,812.16 × 833.94
  4. Step 4: Simplify right side
    1,874.90x = 2,345,168.54
  5. Step 5: Solve for x
    x = 2,345,168.54/1,874.90
  6. Step 6: Final answer
    x = 1,250.83

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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.