Home / 3,970.53-5,479.74-2,202.71

Finding the Fourth Proportional to 3,970.53, 5,479.74 and 2,202.71

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Solution

The fourth proportional to 3,970.53, 5,479.74 and 2,202.71 is: 3,039.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.53 : 5,479.74 = 2,202.71 : x
  2. Step 2: Convert to fraction form
    3,970.53/5,479.74 = 2,202.71/x
  3. Step 3: Cross multiply
    3,970.53x = 5,479.74 × 2,202.71
  4. Step 4: Simplify right side
    3,970.53x = 12,070,250.70
  5. Step 5: Solve for x
    x = 12,070,250.70/3,970.53
  6. Step 6: Final answer
    x = 3,039.96

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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.