Home / 6,628.80-9,940.32-2,010.72

Finding the Fourth Proportional to 6,628.80, 9,940.32 and 2,010.72

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Solution

The fourth proportional to 6,628.80, 9,940.32 and 2,010.72 is: 3,015.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.80 : 9,940.32 = 2,010.72 : x
  2. Step 2: Convert to fraction form
    6,628.80/9,940.32 = 2,010.72/x
  3. Step 3: Cross multiply
    6,628.80x = 9,940.32 × 2,010.72
  4. Step 4: Simplify right side
    6,628.80x = 19,987,200.23
  5. Step 5: Solve for x
    x = 19,987,200.23/6,628.80
  6. Step 6: Final answer
    x = 3,015.21

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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.