Home / 2,427.45-3,638.19-1,109.37

Finding the Fourth Proportional to 2,427.45, 3,638.19 and 1,109.37

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Solution

The fourth proportional to 2,427.45, 3,638.19 and 1,109.37 is: 1,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.45 : 3,638.19 = 1,109.37 : x
  2. Step 2: Convert to fraction form
    2,427.45/3,638.19 = 1,109.37/x
  3. Step 3: Cross multiply
    2,427.45x = 3,638.19 × 1,109.37
  4. Step 4: Simplify right side
    2,427.45x = 4,036,098.84
  5. Step 5: Solve for x
    x = 4,036,098.84/2,427.45
  6. Step 6: Final answer
    x = 1,662.69

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1.5x scale

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.