Home / 4,287.56-6,431.34-1,512.72

Finding the Fourth Proportional to 4,287.56, 6,431.34 and 1,512.72

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Solution

The fourth proportional to 4,287.56, 6,431.34 and 1,512.72 is: 2,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.56 : 6,431.34 = 1,512.72 : x
  2. Step 2: Convert to fraction form
    4,287.56/6,431.34 = 1,512.72/x
  3. Step 3: Cross multiply
    4,287.56x = 6,431.34 × 1,512.72
  4. Step 4: Simplify right side
    4,287.56x = 9,728,846.44
  5. Step 5: Solve for x
    x = 9,728,846.44/4,287.56
  6. Step 6: Final answer
    x = 2,269.09

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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.