Home / 3,370.31-5,055.60-1,638.53

Finding the Fourth Proportional to 3,370.31, 5,055.60 and 1,638.53

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Solution

The fourth proportional to 3,370.31, 5,055.60 and 1,638.53 is: 2,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.31 : 5,055.60 = 1,638.53 : x
  2. Step 2: Convert to fraction form
    3,370.31/5,055.60 = 1,638.53/x
  3. Step 3: Cross multiply
    3,370.31x = 5,055.60 × 1,638.53
  4. Step 4: Simplify right side
    3,370.31x = 8,283,742.88
  5. Step 5: Solve for x
    x = 8,283,742.88/3,370.31
  6. Step 6: Final answer
    x = 2,457.86

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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.