Home / 2,905.78-4,359.20-1,059.49

Finding the Fourth Proportional to 2,905.78, 4,359.20 and 1,059.49

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Solution

The fourth proportional to 2,905.78, 4,359.20 and 1,059.49 is: 1,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.78 : 4,359.20 = 1,059.49 : x
  2. Step 2: Convert to fraction form
    2,905.78/4,359.20 = 1,059.49/x
  3. Step 3: Cross multiply
    2,905.78x = 4,359.20 × 1,059.49
  4. Step 4: Simplify right side
    2,905.78x = 4,618,528.81
  5. Step 5: Solve for x
    x = 4,618,528.81/2,905.78
  6. Step 6: Final answer
    x = 1,589.43

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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.