Home / 2,431.67-3,628.53-2,169.87

Finding the Fourth Proportional to 2,431.67, 3,628.53 and 2,169.87

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Solution

The fourth proportional to 2,431.67, 3,628.53 and 2,169.87 is: 3,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.67 : 3,628.53 = 2,169.87 : x
  2. Step 2: Convert to fraction form
    2,431.67/3,628.53 = 2,169.87/x
  3. Step 3: Cross multiply
    2,431.67x = 3,628.53 × 2,169.87
  4. Step 4: Simplify right side
    2,431.67x = 7,873,438.39
  5. Step 5: Solve for x
    x = 7,873,438.39/2,431.67
  6. Step 6: Final answer
    x = 3,237.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.