Home / 5,239.79-7,855.91-1,727.84

Finding the Fourth Proportional to 5,239.79, 7,855.91 and 1,727.84

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Solution

The fourth proportional to 5,239.79, 7,855.91 and 1,727.84 is: 2,590.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.79 : 7,855.91 = 1,727.84 : x
  2. Step 2: Convert to fraction form
    5,239.79/7,855.91 = 1,727.84/x
  3. Step 3: Cross multiply
    5,239.79x = 7,855.91 × 1,727.84
  4. Step 4: Simplify right side
    5,239.79x = 13,573,707.62
  5. Step 5: Solve for x
    x = 13,573,707.62/5,239.79
  6. Step 6: Final answer
    x = 2,590.51

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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.