Home / 2,146.53-3,221.01-1,223.13

Finding the Fourth Proportional to 2,146.53, 3,221.01 and 1,223.13

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Solution

The fourth proportional to 2,146.53, 3,221.01 and 1,223.13 is: 1,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.53 : 3,221.01 = 1,223.13 : x
  2. Step 2: Convert to fraction form
    2,146.53/3,221.01 = 1,223.13/x
  3. Step 3: Cross multiply
    2,146.53x = 3,221.01 × 1,223.13
  4. Step 4: Simplify right side
    2,146.53x = 3,939,713.96
  5. Step 5: Solve for x
    x = 3,939,713.96/2,146.53
  6. Step 6: Final answer
    x = 1,835.39

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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.