Home / 5,184.54-7,776.90-1,721.79

Finding the Fourth Proportional to 5,184.54, 7,776.90 and 1,721.79

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Solution

The fourth proportional to 5,184.54, 7,776.90 and 1,721.79 is: 2,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.54 : 7,776.90 = 1,721.79 : x
  2. Step 2: Convert to fraction form
    5,184.54/7,776.90 = 1,721.79/x
  3. Step 3: Cross multiply
    5,184.54x = 7,776.90 × 1,721.79
  4. Step 4: Simplify right side
    5,184.54x = 13,390,188.65
  5. Step 5: Solve for x
    x = 13,390,188.65/5,184.54
  6. Step 6: Final answer
    x = 2,582.71

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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.