Home / 2,906.67-4,011.18-1,912.50

Finding the Fourth Proportional to 2,906.67, 4,011.18 and 1,912.50

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Solution

The fourth proportional to 2,906.67, 4,011.18 and 1,912.50 is: 2,639.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.67 : 4,011.18 = 1,912.50 : x
  2. Step 2: Convert to fraction form
    2,906.67/4,011.18 = 1,912.50/x
  3. Step 3: Cross multiply
    2,906.67x = 4,011.18 × 1,912.50
  4. Step 4: Simplify right side
    2,906.67x = 7,671,381.75
  5. Step 5: Solve for x
    x = 7,671,381.75/2,906.67
  6. Step 6: Final answer
    x = 2,639.23

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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.