Home / 2,143.37-3,215.25-844.54

Finding the Fourth Proportional to 2,143.37, 3,215.25 and 844.54

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Solution

The fourth proportional to 2,143.37, 3,215.25 and 844.54 is: 1,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.37 : 3,215.25 = 844.54 : x
  2. Step 2: Convert to fraction form
    2,143.37/3,215.25 = 844.54/x
  3. Step 3: Cross multiply
    2,143.37x = 3,215.25 × 844.54
  4. Step 4: Simplify right side
    2,143.37x = 2,715,407.24
  5. Step 5: Solve for x
    x = 2,715,407.24/2,143.37
  6. Step 6: Final answer
    x = 1,266.89

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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.