Home / 5,311.44-7,967.16-1,415.86

Finding the Fourth Proportional to 5,311.44, 7,967.16 and 1,415.86

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Solution

The fourth proportional to 5,311.44, 7,967.16 and 1,415.86 is: 2,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.44 : 7,967.16 = 1,415.86 : x
  2. Step 2: Convert to fraction form
    5,311.44/7,967.16 = 1,415.86/x
  3. Step 3: Cross multiply
    5,311.44x = 7,967.16 × 1,415.86
  4. Step 4: Simplify right side
    5,311.44x = 11,280,383.16
  5. Step 5: Solve for x
    x = 11,280,383.16/5,311.44
  6. Step 6: Final answer
    x = 2,123.79

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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.