Home / 3,513.72-5,266.53-1,665.30

Finding the Fourth Proportional to 3,513.72, 5,266.53 and 1,665.30

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Solution

The fourth proportional to 3,513.72, 5,266.53 and 1,665.30 is: 2,496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.72 : 5,266.53 = 1,665.30 : x
  2. Step 2: Convert to fraction form
    3,513.72/5,266.53 = 1,665.30/x
  3. Step 3: Cross multiply
    3,513.72x = 5,266.53 × 1,665.30
  4. Step 4: Simplify right side
    3,513.72x = 8,770,352.41
  5. Step 5: Solve for x
    x = 8,770,352.41/3,513.72
  6. Step 6: Final answer
    x = 2,496.03

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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.