Home / 4,215.90-6,321.60-1,293.42

Finding the Fourth Proportional to 4,215.90, 6,321.60 and 1,293.42

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Solution

The fourth proportional to 4,215.90, 6,321.60 and 1,293.42 is: 1,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.90 : 6,321.60 = 1,293.42 : x
  2. Step 2: Convert to fraction form
    4,215.90/6,321.60 = 1,293.42/x
  3. Step 3: Cross multiply
    4,215.90x = 6,321.60 × 1,293.42
  4. Step 4: Simplify right side
    4,215.90x = 8,176,483.87
  5. Step 5: Solve for x
    x = 8,176,483.87/4,215.90
  6. Step 6: Final answer
    x = 1,939.44

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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.