Home / 5,311.49-7,967.25-1,613.75

Finding the Fourth Proportional to 5,311.49, 7,967.25 and 1,613.75

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Solution

The fourth proportional to 5,311.49, 7,967.25 and 1,613.75 is: 2,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.49 : 7,967.25 = 1,613.75 : x
  2. Step 2: Convert to fraction form
    5,311.49/7,967.25 = 1,613.75/x
  3. Step 3: Cross multiply
    5,311.49x = 7,967.25 × 1,613.75
  4. Step 4: Simplify right side
    5,311.49x = 12,857,149.69
  5. Step 5: Solve for x
    x = 12,857,149.69/5,311.49
  6. Step 6: Final answer
    x = 2,420.63

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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.