Home / 3,105.81-4,659.53-1,625.77

Finding the Fourth Proportional to 3,105.81, 4,659.53 and 1,625.77

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Solution

The fourth proportional to 3,105.81, 4,659.53 and 1,625.77 is: 2,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.81 : 4,659.53 = 1,625.77 : x
  2. Step 2: Convert to fraction form
    3,105.81/4,659.53 = 1,625.77/x
  3. Step 3: Cross multiply
    3,105.81x = 4,659.53 × 1,625.77
  4. Step 4: Simplify right side
    3,105.81x = 7,575,321.78
  5. Step 5: Solve for x
    x = 7,575,321.78/3,105.81
  6. Step 6: Final answer
    x = 2,439.08

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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.