Home / 6,874.20-10,311.30-2,491.80

Finding the Fourth Proportional to 6,874.20, 10,311.30 and 2,491.80

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Solution

The fourth proportional to 6,874.20, 10,311.30 and 2,491.80 is: 3,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,874.20 : 10,311.30 = 2,491.80 : x
  2. Step 2: Convert to fraction form
    6,874.20/10,311.30 = 2,491.80/x
  3. Step 3: Cross multiply
    6,874.20x = 10,311.30 × 2,491.80
  4. Step 4: Simplify right side
    6,874.20x = 25,693,697.34
  5. Step 5: Solve for x
    x = 25,693,697.34/6,874.20
  6. Step 6: Final answer
    x = 3,737.70

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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.