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Finding the Fourth Proportional to 2,725.99, 4,089.12 and 1,339.98

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Solution

The fourth proportional to 2,725.99, 4,089.12 and 1,339.98 is: 2,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.99 : 4,089.12 = 1,339.98 : x
  2. Step 2: Convert to fraction form
    2,725.99/4,089.12 = 1,339.98/x
  3. Step 3: Cross multiply
    2,725.99x = 4,089.12 × 1,339.98
  4. Step 4: Simplify right side
    2,725.99x = 5,479,339.02
  5. Step 5: Solve for x
    x = 5,479,339.02/2,725.99
  6. Step 6: Final answer
    x = 2,010.04

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1.5x scale

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.