Home / 2,520.08-3,780.24-1,222.64

Finding the Fourth Proportional to 2,520.08, 3,780.24 and 1,222.64

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Solution

The fourth proportional to 2,520.08, 3,780.24 and 1,222.64 is: 1,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.08 : 3,780.24 = 1,222.64 : x
  2. Step 2: Convert to fraction form
    2,520.08/3,780.24 = 1,222.64/x
  3. Step 3: Cross multiply
    2,520.08x = 3,780.24 × 1,222.64
  4. Step 4: Simplify right side
    2,520.08x = 4,621,872.63
  5. Step 5: Solve for x
    x = 4,621,872.63/2,520.08
  6. Step 6: Final answer
    x = 1,834.02

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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.