Home / 5,827.68-8,739.60-2,129.28

Finding the Fourth Proportional to 5,827.68, 8,739.60 and 2,129.28

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Solution

The fourth proportional to 5,827.68, 8,739.60 and 2,129.28 is: 3,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.68 : 8,739.60 = 2,129.28 : x
  2. Step 2: Convert to fraction form
    5,827.68/8,739.60 = 2,129.28/x
  3. Step 3: Cross multiply
    5,827.68x = 8,739.60 × 2,129.28
  4. Step 4: Simplify right side
    5,827.68x = 18,609,055.49
  5. Step 5: Solve for x
    x = 18,609,055.49/5,827.68
  6. Step 6: Final answer
    x = 3,193.22

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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.