Home / 4,072.64-6,109.43-1,298.34

Finding the Fourth Proportional to 4,072.64, 6,109.43 and 1,298.34

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Solution

The fourth proportional to 4,072.64, 6,109.43 and 1,298.34 is: 1,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.64 : 6,109.43 = 1,298.34 : x
  2. Step 2: Convert to fraction form
    4,072.64/6,109.43 = 1,298.34/x
  3. Step 3: Cross multiply
    4,072.64x = 6,109.43 × 1,298.34
  4. Step 4: Simplify right side
    4,072.64x = 7,932,110.85
  5. Step 5: Solve for x
    x = 7,932,110.85/4,072.64
  6. Step 6: Final answer
    x = 1,947.66

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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.