Home / 4,255.20-6,383.70-1,293.40

Finding the Fourth Proportional to 4,255.20, 6,383.70 and 1,293.40

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Solution

The fourth proportional to 4,255.20, 6,383.70 and 1,293.40 is: 1,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.20 : 6,383.70 = 1,293.40 : x
  2. Step 2: Convert to fraction form
    4,255.20/6,383.70 = 1,293.40/x
  3. Step 3: Cross multiply
    4,255.20x = 6,383.70 × 1,293.40
  4. Step 4: Simplify right side
    4,255.20x = 8,256,677.58
  5. Step 5: Solve for x
    x = 8,256,677.58/4,255.20
  6. Step 6: Final answer
    x = 1,940.37

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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.