Home / 3,855,229.08-5,320,247.61-2,136,378.30

Finding the Fourth Proportional to 3,855,229.08, 5,320,247.61 and 2,136,378.30

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Solution

The fourth proportional to 3,855,229.08, 5,320,247.61 and 2,136,378.30 is: 2,948,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,229.08 : 5,320,247.61 = 2,136,378.30 : x
  2. Step 2: Convert to fraction form
    3,855,229.08/5,320,247.61 = 2,136,378.30/x
  3. Step 3: Cross multiply
    3,855,229.08x = 5,320,247.61 × 2,136,378.30
  4. Step 4: Simplify right side
    3,855,229.08x = 11,366,061,544,630.86
  5. Step 5: Solve for x
    x = 11,366,061,544,630.86/3,855,229.08
  6. Step 6: Final answer
    x = 2,948,219.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.