Home / 4,215.72-6,324.20-1,293.60

Finding the Fourth Proportional to 4,215.72, 6,324.20 and 1,293.60

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Solution

The fourth proportional to 4,215.72, 6,324.20 and 1,293.60 is: 1,940.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.72 : 6,324.20 = 1,293.60 : x
  2. Step 2: Convert to fraction form
    4,215.72/6,324.20 = 1,293.60/x
  3. Step 3: Cross multiply
    4,215.72x = 6,324.20 × 1,293.60
  4. Step 4: Simplify right side
    4,215.72x = 8,180,985.12
  5. Step 5: Solve for x
    x = 8,180,985.12/4,215.72
  6. Step 6: Final answer
    x = 1,940.59

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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.