Home / 5,829.40-8,738.43-2,129.32

Finding the Fourth Proportional to 5,829.40, 8,738.43 and 2,129.32

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Solution

The fourth proportional to 5,829.40, 8,738.43 and 2,129.32 is: 3,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,829.40 : 8,738.43 = 2,129.32 : x
  2. Step 2: Convert to fraction form
    5,829.40/8,738.43 = 2,129.32/x
  3. Step 3: Cross multiply
    5,829.40x = 8,738.43 × 2,129.32
  4. Step 4: Simplify right side
    5,829.40x = 18,606,913.77
  5. Step 5: Solve for x
    x = 18,606,913.77/5,829.40
  6. Step 6: Final answer
    x = 3,191.91

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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.