Home / 2,735.10-4,102.43-1,638.67

Finding the Fourth Proportional to 2,735.10, 4,102.43 and 1,638.67

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Solution

The fourth proportional to 2,735.10, 4,102.43 and 1,638.67 is: 2,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.10 : 4,102.43 = 1,638.67 : x
  2. Step 2: Convert to fraction form
    2,735.10/4,102.43 = 1,638.67/x
  3. Step 3: Cross multiply
    2,735.10x = 4,102.43 × 1,638.67
  4. Step 4: Simplify right side
    2,735.10x = 6,722,528.97
  5. Step 5: Solve for x
    x = 6,722,528.97/2,735.10
  6. Step 6: Final answer
    x = 2,457.87

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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.