Home / 5,826.56-8,740.20-2,128.31

Finding the Fourth Proportional to 5,826.56, 8,740.20 and 2,128.31

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Solution

The fourth proportional to 5,826.56, 8,740.20 and 2,128.31 is: 3,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,826.56 : 8,740.20 = 2,128.31 : x
  2. Step 2: Convert to fraction form
    5,826.56/8,740.20 = 2,128.31/x
  3. Step 3: Cross multiply
    5,826.56x = 8,740.20 × 2,128.31
  4. Step 4: Simplify right side
    5,826.56x = 18,601,811.36
  5. Step 5: Solve for x
    x = 18,601,811.36/5,826.56
  6. Step 6: Final answer
    x = 3,192.59

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1.5x scale

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.