Home / 2,912.70-4,362.51-2,261.46

Finding the Fourth Proportional to 2,912.70, 4,362.51 and 2,261.46

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Solution

The fourth proportional to 2,912.70, 4,362.51 and 2,261.46 is: 3,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.70 : 4,362.51 = 2,261.46 : x
  2. Step 2: Convert to fraction form
    2,912.70/4,362.51 = 2,261.46/x
  3. Step 3: Cross multiply
    2,912.70x = 4,362.51 × 2,261.46
  4. Step 4: Simplify right side
    2,912.70x = 9,865,641.86
  5. Step 5: Solve for x
    x = 9,865,641.86/2,912.70
  6. Step 6: Final answer
    x = 3,387.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.