Home / 3,638.70-5,453.49-1,556.26

Finding the Fourth Proportional to 3,638.70, 5,453.49 and 1,556.26

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Solution

The fourth proportional to 3,638.70, 5,453.49 and 1,556.26 is: 2,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.70 : 5,453.49 = 1,556.26 : x
  2. Step 2: Convert to fraction form
    3,638.70/5,453.49 = 1,556.26/x
  3. Step 3: Cross multiply
    3,638.70x = 5,453.49 × 1,556.26
  4. Step 4: Simplify right side
    3,638.70x = 8,487,020.12
  5. Step 5: Solve for x
    x = 8,487,020.12/3,638.70
  6. Step 6: Final answer
    x = 2,332.43

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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.