Home / 3,515.60-5,273.40-2,219.60

Finding the Fourth Proportional to 3,515.60, 5,273.40 and 2,219.60

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Solution

The fourth proportional to 3,515.60, 5,273.40 and 2,219.60 is: 3,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.60 : 5,273.40 = 2,219.60 : x
  2. Step 2: Convert to fraction form
    3,515.60/5,273.40 = 2,219.60/x
  3. Step 3: Cross multiply
    3,515.60x = 5,273.40 × 2,219.60
  4. Step 4: Simplify right side
    3,515.60x = 11,704,838.64
  5. Step 5: Solve for x
    x = 11,704,838.64/3,515.60
  6. Step 6: Final answer
    x = 3,329.40

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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.