Home / 4,620.80-6,921.92-2,152.32

Finding the Fourth Proportional to 4,620.80, 6,921.92 and 2,152.32

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Solution

The fourth proportional to 4,620.80, 6,921.92 and 2,152.32 is: 3,224.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.80 : 6,921.92 = 2,152.32 : x
  2. Step 2: Convert to fraction form
    4,620.80/6,921.92 = 2,152.32/x
  3. Step 3: Cross multiply
    4,620.80x = 6,921.92 × 2,152.32
  4. Step 4: Simplify right side
    4,620.80x = 14,898,186.85
  5. Step 5: Solve for x
    x = 14,898,186.85/4,620.80
  6. Step 6: Final answer
    x = 3,224.16

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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.