Home / 4,267.28-6,400.87-2,620.86

Finding the Fourth Proportional to 4,267.28, 6,400.87 and 2,620.86

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Solution

The fourth proportional to 4,267.28, 6,400.87 and 2,620.86 is: 3,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.28 : 6,400.87 = 2,620.86 : x
  2. Step 2: Convert to fraction form
    4,267.28/6,400.87 = 2,620.86/x
  3. Step 3: Cross multiply
    4,267.28x = 6,400.87 × 2,620.86
  4. Step 4: Simplify right side
    4,267.28x = 16,775,768.34
  5. Step 5: Solve for x
    x = 16,775,768.34/4,267.28
  6. Step 6: Final answer
    x = 3,931.25

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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.