Home / 3,056.45-4,217.90-1,659.20

Finding the Fourth Proportional to 3,056.45, 4,217.90 and 1,659.20

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Solution

The fourth proportional to 3,056.45, 4,217.90 and 1,659.20 is: 2,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.45 : 4,217.90 = 1,659.20 : x
  2. Step 2: Convert to fraction form
    3,056.45/4,217.90 = 1,659.20/x
  3. Step 3: Cross multiply
    3,056.45x = 4,217.90 × 1,659.20
  4. Step 4: Simplify right side
    3,056.45x = 6,998,310.29
  5. Step 5: Solve for x
    x = 6,998,310.29/3,056.45
  6. Step 6: Final answer
    x = 2,289.69

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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.