Home / 4,215.34-6,322.20-1,292.86

Finding the Fourth Proportional to 4,215.34, 6,322.20 and 1,292.86

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Solution

The fourth proportional to 4,215.34, 6,322.20 and 1,292.86 is: 1,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.34 : 6,322.20 = 1,292.86 : x
  2. Step 2: Convert to fraction form
    4,215.34/6,322.20 = 1,292.86/x
  3. Step 3: Cross multiply
    4,215.34x = 6,322.20 × 1,292.86
  4. Step 4: Simplify right side
    4,215.34x = 8,173,719.49
  5. Step 5: Solve for x
    x = 8,173,719.49/4,215.34
  6. Step 6: Final answer
    x = 1,939.04

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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.