Home / 2,074.38-3,111.56-706.38

Finding the Fourth Proportional to 2,074.38, 3,111.56 and 706.38

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Solution

The fourth proportional to 2,074.38, 3,111.56 and 706.38 is: 1,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.38 : 3,111.56 = 706.38 : x
  2. Step 2: Convert to fraction form
    2,074.38/3,111.56 = 706.38/x
  3. Step 3: Cross multiply
    2,074.38x = 3,111.56 × 706.38
  4. Step 4: Simplify right side
    2,074.38x = 2,197,943.75
  5. Step 5: Solve for x
    x = 2,197,943.75/2,074.38
  6. Step 6: Final answer
    x = 1,059.57

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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.