Home / 5,721.80-8,580.18-1,826.60

Finding the Fourth Proportional to 5,721.80, 8,580.18 and 1,826.60

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Solution

The fourth proportional to 5,721.80, 8,580.18 and 1,826.60 is: 2,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.80 : 8,580.18 = 1,826.60 : x
  2. Step 2: Convert to fraction form
    5,721.80/8,580.18 = 1,826.60/x
  3. Step 3: Cross multiply
    5,721.80x = 8,580.18 × 1,826.60
  4. Step 4: Simplify right side
    5,721.80x = 15,672,556.79
  5. Step 5: Solve for x
    x = 15,672,556.79/5,721.80
  6. Step 6: Final answer
    x = 2,739.10

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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.