Home / 2,150.74-3,224.40-851.50

Finding the Fourth Proportional to 2,150.74, 3,224.40 and 851.50

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Solution

The fourth proportional to 2,150.74, 3,224.40 and 851.50 is: 1,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.74 : 3,224.40 = 851.50 : x
  2. Step 2: Convert to fraction form
    2,150.74/3,224.40 = 851.50/x
  3. Step 3: Cross multiply
    2,150.74x = 3,224.40 × 851.50
  4. Step 4: Simplify right side
    2,150.74x = 2,745,576.60
  5. Step 5: Solve for x
    x = 2,745,576.60/2,150.74
  6. Step 6: Final answer
    x = 1,276.57

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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.