Home / 2,750.58-4,119.67-2,129.34

Finding the Fourth Proportional to 2,750.58, 4,119.67 and 2,129.34

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Solution

The fourth proportional to 2,750.58, 4,119.67 and 2,129.34 is: 3,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.58 : 4,119.67 = 2,129.34 : x
  2. Step 2: Convert to fraction form
    2,750.58/4,119.67 = 2,129.34/x
  3. Step 3: Cross multiply
    2,750.58x = 4,119.67 × 2,129.34
  4. Step 4: Simplify right side
    2,750.58x = 8,772,178.12
  5. Step 5: Solve for x
    x = 8,772,178.12/2,750.58
  6. Step 6: Final answer
    x = 3,189.21

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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.