Home / 6,746.80-10,120.20-2,642.80

Finding the Fourth Proportional to 6,746.80, 10,120.20 and 2,642.80

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Solution

The fourth proportional to 6,746.80, 10,120.20 and 2,642.80 is: 3,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,746.80 : 10,120.20 = 2,642.80 : x
  2. Step 2: Convert to fraction form
    6,746.80/10,120.20 = 2,642.80/x
  3. Step 3: Cross multiply
    6,746.80x = 10,120.20 × 2,642.80
  4. Step 4: Simplify right side
    6,746.80x = 26,745,664.56
  5. Step 5: Solve for x
    x = 26,745,664.56/6,746.80
  6. Step 6: Final answer
    x = 3,964.20

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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.