Home / 2,754.75-4,128.01-1,110.40

Finding the Fourth Proportional to 2,754.75, 4,128.01 and 1,110.40

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Solution

The fourth proportional to 2,754.75, 4,128.01 and 1,110.40 is: 1,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.75 : 4,128.01 = 1,110.40 : x
  2. Step 2: Convert to fraction form
    2,754.75/4,128.01 = 1,110.40/x
  3. Step 3: Cross multiply
    2,754.75x = 4,128.01 × 1,110.40
  4. Step 4: Simplify right side
    2,754.75x = 4,583,742.30
  5. Step 5: Solve for x
    x = 4,583,742.30/2,754.75
  6. Step 6: Final answer
    x = 1,663.94

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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.