Home / 5,423.05-8,135.77-2,305.72

Finding the Fourth Proportional to 5,423.05, 8,135.77 and 2,305.72

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Solution

The fourth proportional to 5,423.05, 8,135.77 and 2,305.72 is: 3,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.05 : 8,135.77 = 2,305.72 : x
  2. Step 2: Convert to fraction form
    5,423.05/8,135.77 = 2,305.72/x
  3. Step 3: Cross multiply
    5,423.05x = 8,135.77 × 2,305.72
  4. Step 4: Simplify right side
    5,423.05x = 18,758,809.85
  5. Step 5: Solve for x
    x = 18,758,809.85/5,423.05
  6. Step 6: Final answer
    x = 3,459.09

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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.