Home / 2,431.50-3,353.94-1,685.48

Finding the Fourth Proportional to 2,431.50, 3,353.94 and 1,685.48

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Solution

The fourth proportional to 2,431.50, 3,353.94 and 1,685.48 is: 2,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.50 : 3,353.94 = 1,685.48 : x
  2. Step 2: Convert to fraction form
    2,431.50/3,353.94 = 1,685.48/x
  3. Step 3: Cross multiply
    2,431.50x = 3,353.94 × 1,685.48
  4. Step 4: Simplify right side
    2,431.50x = 5,652,998.79
  5. Step 5: Solve for x
    x = 5,652,998.79/2,431.50
  6. Step 6: Final answer
    x = 2,324.90

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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.