Home / 5,439.42-8,160.89-2,519.64

Finding the Fourth Proportional to 5,439.42, 8,160.89 and 2,519.64

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Solution

The fourth proportional to 5,439.42, 8,160.89 and 2,519.64 is: 3,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.42 : 8,160.89 = 2,519.64 : x
  2. Step 2: Convert to fraction form
    5,439.42/8,160.89 = 2,519.64/x
  3. Step 3: Cross multiply
    5,439.42x = 8,160.89 × 2,519.64
  4. Step 4: Simplify right side
    5,439.42x = 20,562,492.28
  5. Step 5: Solve for x
    x = 20,562,492.28/5,439.42
  6. Step 6: Final answer
    x = 3,780.27

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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.