Home / 5,709.72-8,561.34-2,784.36

Finding the Fourth Proportional to 5,709.72, 8,561.34 and 2,784.36

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Solution

The fourth proportional to 5,709.72, 8,561.34 and 2,784.36 is: 4,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,709.72 : 8,561.34 = 2,784.36 : x
  2. Step 2: Convert to fraction form
    5,709.72/8,561.34 = 2,784.36/x
  3. Step 3: Cross multiply
    5,709.72x = 8,561.34 × 2,784.36
  4. Step 4: Simplify right side
    5,709.72x = 23,837,852.64
  5. Step 5: Solve for x
    x = 23,837,852.64/5,709.72
  6. Step 6: Final answer
    x = 4,174.96

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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.