Home / 3,531.56-5,299.78-1,223.06

Finding the Fourth Proportional to 3,531.56, 5,299.78 and 1,223.06

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Solution

The fourth proportional to 3,531.56, 5,299.78 and 1,223.06 is: 1,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.56 : 5,299.78 = 1,223.06 : x
  2. Step 2: Convert to fraction form
    3,531.56/5,299.78 = 1,223.06/x
  3. Step 3: Cross multiply
    3,531.56x = 5,299.78 × 1,223.06
  4. Step 4: Simplify right side
    3,531.56x = 6,481,948.93
  5. Step 5: Solve for x
    x = 6,481,948.93/3,531.56
  6. Step 6: Final answer
    x = 1,835.44

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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.