Home / 3,079.56-4,251.75-2,135.01

Finding the Fourth Proportional to 3,079.56, 4,251.75 and 2,135.01

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Solution

The fourth proportional to 3,079.56, 4,251.75 and 2,135.01 is: 2,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.56 : 4,251.75 = 2,135.01 : x
  2. Step 2: Convert to fraction form
    3,079.56/4,251.75 = 2,135.01/x
  3. Step 3: Cross multiply
    3,079.56x = 4,251.75 × 2,135.01
  4. Step 4: Simplify right side
    3,079.56x = 9,077,539.40
  5. Step 5: Solve for x
    x = 9,077,539.40/3,079.56
  6. Step 6: Final answer
    x = 2,947.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.