Home / 5,829.20-8,743.80-2,130.20

Finding the Fourth Proportional to 5,829.20, 8,743.80 and 2,130.20

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Solution

The fourth proportional to 5,829.20, 8,743.80 and 2,130.20 is: 3,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,829.20 : 8,743.80 = 2,130.20 : x
  2. Step 2: Convert to fraction form
    5,829.20/8,743.80 = 2,130.20/x
  3. Step 3: Cross multiply
    5,829.20x = 8,743.80 × 2,130.20
  4. Step 4: Simplify right side
    5,829.20x = 18,626,042.76
  5. Step 5: Solve for x
    x = 18,626,042.76/5,829.20
  6. Step 6: Final answer
    x = 3,195.30

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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.