Home / 3,005.46-4,508.19-1,272.87

Finding the Fourth Proportional to 3,005.46, 4,508.19 and 1,272.87

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Solution

The fourth proportional to 3,005.46, 4,508.19 and 1,272.87 is: 1,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.46 : 4,508.19 = 1,272.87 : x
  2. Step 2: Convert to fraction form
    3,005.46/4,508.19 = 1,272.87/x
  3. Step 3: Cross multiply
    3,005.46x = 4,508.19 × 1,272.87
  4. Step 4: Simplify right side
    3,005.46x = 5,738,339.81
  5. Step 5: Solve for x
    x = 5,738,339.81/3,005.46
  6. Step 6: Final answer
    x = 1,909.31

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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.