Home / 6,424.80-9,628.20-5,110.80

Finding the Fourth Proportional to 6,424.80, 9,628.20 and 5,110.80

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Solution

The fourth proportional to 6,424.80, 9,628.20 and 5,110.80 is: 7,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.80 : 9,628.20 = 5,110.80 : x
  2. Step 2: Convert to fraction form
    6,424.80/9,628.20 = 5,110.80/x
  3. Step 3: Cross multiply
    6,424.80x = 9,628.20 × 5,110.80
  4. Step 4: Simplify right side
    6,424.80x = 49,207,804.56
  5. Step 5: Solve for x
    x = 49,207,804.56/6,424.80
  6. Step 6: Final answer
    x = 7,659.04

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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.