Home / 2,480.32-3,720.07-836.83

Finding the Fourth Proportional to 2,480.32, 3,720.07 and 836.83

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Solution

The fourth proportional to 2,480.32, 3,720.07 and 836.83 is: 1,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.32 : 3,720.07 = 836.83 : x
  2. Step 2: Convert to fraction form
    2,480.32/3,720.07 = 836.83/x
  3. Step 3: Cross multiply
    2,480.32x = 3,720.07 × 836.83
  4. Step 4: Simplify right side
    2,480.32x = 3,113,043.39
  5. Step 5: Solve for x
    x = 3,113,043.39/2,480.32
  6. Step 6: Final answer
    x = 1,255.10

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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.