Home / 3,056.15-4,217.69-1,729.85

Finding the Fourth Proportional to 3,056.15, 4,217.69 and 1,729.85

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Solution

The fourth proportional to 3,056.15, 4,217.69 and 1,729.85 is: 2,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.15 : 4,217.69 = 1,729.85 : x
  2. Step 2: Convert to fraction form
    3,056.15/4,217.69 = 1,729.85/x
  3. Step 3: Cross multiply
    3,056.15x = 4,217.69 × 1,729.85
  4. Step 4: Simplify right side
    3,056.15x = 7,295,971.05
  5. Step 5: Solve for x
    x = 7,295,971.05/3,056.15
  6. Step 6: Final answer
    x = 2,387.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.