Home / 4,128.70-6,193.10-1,207.03

Finding the Fourth Proportional to 4,128.70, 6,193.10 and 1,207.03

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Solution

The fourth proportional to 4,128.70, 6,193.10 and 1,207.03 is: 1,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.70 : 6,193.10 = 1,207.03 : x
  2. Step 2: Convert to fraction form
    4,128.70/6,193.10 = 1,207.03/x
  3. Step 3: Cross multiply
    4,128.70x = 6,193.10 × 1,207.03
  4. Step 4: Simplify right side
    4,128.70x = 7,475,257.49
  5. Step 5: Solve for x
    x = 7,475,257.49/4,128.70
  6. Step 6: Final answer
    x = 1,810.56

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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.