Home / 2,431.73-3,355.74-1,369.49

Finding the Fourth Proportional to 2,431.73, 3,355.74 and 1,369.49

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Solution

The fourth proportional to 2,431.73, 3,355.74 and 1,369.49 is: 1,889.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.73 : 3,355.74 = 1,369.49 : x
  2. Step 2: Convert to fraction form
    2,431.73/3,355.74 = 1,369.49/x
  3. Step 3: Cross multiply
    2,431.73x = 3,355.74 × 1,369.49
  4. Step 4: Simplify right side
    2,431.73x = 4,595,654.47
  5. Step 5: Solve for x
    x = 4,595,654.47/2,431.73
  6. Step 6: Final answer
    x = 1,889.87

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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.