Home / 7,410.80-11,117.03-2,480.78

Finding the Fourth Proportional to 7,410.80, 11,117.03 and 2,480.78

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Solution

The fourth proportional to 7,410.80, 11,117.03 and 2,480.78 is: 3,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.80 : 11,117.03 = 2,480.78 : x
  2. Step 2: Convert to fraction form
    7,410.80/11,117.03 = 2,480.78/x
  3. Step 3: Cross multiply
    7,410.80x = 11,117.03 × 2,480.78
  4. Step 4: Simplify right side
    7,410.80x = 27,578,837.69
  5. Step 5: Solve for x
    x = 27,578,837.69/7,410.80
  6. Step 6: Final answer
    x = 3,721.44

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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.