Home / 2,874.09-4,311.68-1,142.85

Finding the Fourth Proportional to 2,874.09, 4,311.68 and 1,142.85

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Solution

The fourth proportional to 2,874.09, 4,311.68 and 1,142.85 is: 1,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.09 : 4,311.68 = 1,142.85 : x
  2. Step 2: Convert to fraction form
    2,874.09/4,311.68 = 1,142.85/x
  3. Step 3: Cross multiply
    2,874.09x = 4,311.68 × 1,142.85
  4. Step 4: Simplify right side
    2,874.09x = 4,927,597.77
  5. Step 5: Solve for x
    x = 4,927,597.77/2,874.09
  6. Step 6: Final answer
    x = 1,714.49

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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.