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Finding the Fourth Proportional to 2,898.88, 3,998.97 and 1,834.85

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Solution

The fourth proportional to 2,898.88, 3,998.97 and 1,834.85 is: 2,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.88 : 3,998.97 = 1,834.85 : x
  2. Step 2: Convert to fraction form
    2,898.88/3,998.97 = 1,834.85/x
  3. Step 3: Cross multiply
    2,898.88x = 3,998.97 × 1,834.85
  4. Step 4: Simplify right side
    2,898.88x = 7,337,490.11
  5. Step 5: Solve for x
    x = 7,337,490.11/2,898.88
  6. Step 6: Final answer
    x = 2,531.15

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1.5x scale

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.