Home / 1,945.22-2,912.36-1,748.39

Finding the Fourth Proportional to 1,945.22, 2,912.36 and 1,748.39

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Solution

The fourth proportional to 1,945.22, 2,912.36 and 1,748.39 is: 2,617.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.22 : 2,912.36 = 1,748.39 : x
  2. Step 2: Convert to fraction form
    1,945.22/2,912.36 = 1,748.39/x
  3. Step 3: Cross multiply
    1,945.22x = 2,912.36 × 1,748.39
  4. Step 4: Simplify right side
    1,945.22x = 5,091,941.10
  5. Step 5: Solve for x
    x = 5,091,941.10/1,945.22
  6. Step 6: Final answer
    x = 2,617.67

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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.