Home / 2,905.94-4,353.95-1,918.15

Finding the Fourth Proportional to 2,905.94, 4,353.95 and 1,918.15

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Solution

The fourth proportional to 2,905.94, 4,353.95 and 1,918.15 is: 2,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.94 : 4,353.95 = 1,918.15 : x
  2. Step 2: Convert to fraction form
    2,905.94/4,353.95 = 1,918.15/x
  3. Step 3: Cross multiply
    2,905.94x = 4,353.95 × 1,918.15
  4. Step 4: Simplify right side
    2,905.94x = 8,351,523.10
  5. Step 5: Solve for x
    x = 8,351,523.10/2,905.94
  6. Step 6: Final answer
    x = 2,873.95

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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.