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Finding the Fourth Proportional to 2,898.43, 4,339.92 and 1,975.80

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Solution

The fourth proportional to 2,898.43, 4,339.92 and 1,975.80 is: 2,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.43 : 4,339.92 = 1,975.80 : x
  2. Step 2: Convert to fraction form
    2,898.43/4,339.92 = 1,975.80/x
  3. Step 3: Cross multiply
    2,898.43x = 4,339.92 × 1,975.80
  4. Step 4: Simplify right side
    2,898.43x = 8,574,813.94
  5. Step 5: Solve for x
    x = 8,574,813.94/2,898.43
  6. Step 6: Final answer
    x = 2,958.43

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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.