Home / 3,461.38-5,190.45-1,515.22

Finding the Fourth Proportional to 3,461.38, 5,190.45 and 1,515.22

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Solution

The fourth proportional to 3,461.38, 5,190.45 and 1,515.22 is: 2,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.38 : 5,190.45 = 1,515.22 : x
  2. Step 2: Convert to fraction form
    3,461.38/5,190.45 = 1,515.22/x
  3. Step 3: Cross multiply
    3,461.38x = 5,190.45 × 1,515.22
  4. Step 4: Simplify right side
    3,461.38x = 7,864,673.65
  5. Step 5: Solve for x
    x = 7,864,673.65/3,461.38
  6. Step 6: Final answer
    x = 2,272.12

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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.