Home / 5,439.36-8,157.72-2,514.87

Finding the Fourth Proportional to 5,439.36, 8,157.72 and 2,514.87

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Solution

The fourth proportional to 5,439.36, 8,157.72 and 2,514.87 is: 3,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.36 : 8,157.72 = 2,514.87 : x
  2. Step 2: Convert to fraction form
    5,439.36/8,157.72 = 2,514.87/x
  3. Step 3: Cross multiply
    5,439.36x = 8,157.72 × 2,514.87
  4. Step 4: Simplify right side
    5,439.36x = 20,515,605.30
  5. Step 5: Solve for x
    x = 20,515,605.30/5,439.36
  6. Step 6: Final answer
    x = 3,771.69

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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.