Home / 2,431.21-3,354.99-1,369.03

Finding the Fourth Proportional to 2,431.21, 3,354.99 and 1,369.03

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Solution

The fourth proportional to 2,431.21, 3,354.99 and 1,369.03 is: 1,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.21 : 3,354.99 = 1,369.03 : x
  2. Step 2: Convert to fraction form
    2,431.21/3,354.99 = 1,369.03/x
  3. Step 3: Cross multiply
    2,431.21x = 3,354.99 × 1,369.03
  4. Step 4: Simplify right side
    2,431.21x = 4,593,081.96
  5. Step 5: Solve for x
    x = 4,593,081.96/2,431.21
  6. Step 6: Final answer
    x = 1,889.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.