Home / 3,274.90-4,913.61-1,520.80

Finding the Fourth Proportional to 3,274.90, 4,913.61 and 1,520.80

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Solution

The fourth proportional to 3,274.90, 4,913.61 and 1,520.80 is: 2,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.90 : 4,913.61 = 1,520.80 : x
  2. Step 2: Convert to fraction form
    3,274.90/4,913.61 = 1,520.80/x
  3. Step 3: Cross multiply
    3,274.90x = 4,913.61 × 1,520.80
  4. Step 4: Simplify right side
    3,274.90x = 7,472,618.09
  5. Step 5: Solve for x
    x = 7,472,618.09/3,274.90
  6. Step 6: Final answer
    x = 2,281.79

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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.