Home / 2,742.75-3,785.09-1,500.75

Finding the Fourth Proportional to 2,742.75, 3,785.09 and 1,500.75

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Solution

The fourth proportional to 2,742.75, 3,785.09 and 1,500.75 is: 2,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.75 : 3,785.09 = 1,500.75 : x
  2. Step 2: Convert to fraction form
    2,742.75/3,785.09 = 1,500.75/x
  3. Step 3: Cross multiply
    2,742.75x = 3,785.09 × 1,500.75
  4. Step 4: Simplify right side
    2,742.75x = 5,680,473.82
  5. Step 5: Solve for x
    x = 5,680,473.82/2,742.75
  6. Step 6: Final answer
    x = 2,071.09

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1.5x scale

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.