Home / 4,215.76-6,321.36-1,293.28

Finding the Fourth Proportional to 4,215.76, 6,321.36 and 1,293.28

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Solution

The fourth proportional to 4,215.76, 6,321.36 and 1,293.28 is: 1,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.76 : 6,321.36 = 1,293.28 : x
  2. Step 2: Convert to fraction form
    4,215.76/6,321.36 = 1,293.28/x
  3. Step 3: Cross multiply
    4,215.76x = 6,321.36 × 1,293.28
  4. Step 4: Simplify right side
    4,215.76x = 8,175,288.46
  5. Step 5: Solve for x
    x = 8,175,288.46/4,215.76
  6. Step 6: Final answer
    x = 1,939.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.