Home / 4,200.86-6,305.18-2,122.32

Finding the Fourth Proportional to 4,200.86, 6,305.18 and 2,122.32

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Solution

The fourth proportional to 4,200.86, 6,305.18 and 2,122.32 is: 3,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.86 : 6,305.18 = 2,122.32 : x
  2. Step 2: Convert to fraction form
    4,200.86/6,305.18 = 2,122.32/x
  3. Step 3: Cross multiply
    4,200.86x = 6,305.18 × 2,122.32
  4. Step 4: Simplify right side
    4,200.86x = 13,381,622.65
  5. Step 5: Solve for x
    x = 13,381,622.65/4,200.86
  6. Step 6: Final answer
    x = 3,185.45

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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.