Home / 4,239.96-6,359.40-1,120.22

Finding the Fourth Proportional to 4,239.96, 6,359.40 and 1,120.22

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Solution

The fourth proportional to 4,239.96, 6,359.40 and 1,120.22 is: 1,680.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239.96 : 6,359.40 = 1,120.22 : x
  2. Step 2: Convert to fraction form
    4,239.96/6,359.40 = 1,120.22/x
  3. Step 3: Cross multiply
    4,239.96x = 6,359.40 × 1,120.22
  4. Step 4: Simplify right side
    4,239.96x = 7,123,942.97
  5. Step 5: Solve for x
    x = 7,123,942.97/4,239.96
  6. Step 6: Final answer
    x = 1,680.19

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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.