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Finding the Fourth Proportional to 2,369.09, 3,553.40 and 725.65

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Solution

The fourth proportional to 2,369.09, 3,553.40 and 725.65 is: 1,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.09 : 3,553.40 = 725.65 : x
  2. Step 2: Convert to fraction form
    2,369.09/3,553.40 = 725.65/x
  3. Step 3: Cross multiply
    2,369.09x = 3,553.40 × 725.65
  4. Step 4: Simplify right side
    2,369.09x = 2,578,525.52
  5. Step 5: Solve for x
    x = 2,578,525.52/2,369.09
  6. Step 6: Final answer
    x = 1,088.40

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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.