Home / 3,515.46-5,297.34-2,912.70

Finding the Fourth Proportional to 3,515.46, 5,297.34 and 2,912.70

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Solution

The fourth proportional to 3,515.46, 5,297.34 and 2,912.70 is: 4,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.46 : 5,297.34 = 2,912.70 : x
  2. Step 2: Convert to fraction form
    3,515.46/5,297.34 = 2,912.70/x
  3. Step 3: Cross multiply
    3,515.46x = 5,297.34 × 2,912.70
  4. Step 4: Simplify right side
    3,515.46x = 15,429,562.22
  5. Step 5: Solve for x
    x = 15,429,562.22/3,515.46
  6. Step 6: Final answer
    x = 4,389.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.