Home / 5,819.86-8,724.90-4,721.50

Finding the Fourth Proportional to 5,819.86, 8,724.90 and 4,721.50

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Solution

The fourth proportional to 5,819.86, 8,724.90 and 4,721.50 is: 7,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.86 : 8,724.90 = 4,721.50 : x
  2. Step 2: Convert to fraction form
    5,819.86/8,724.90 = 4,721.50/x
  3. Step 3: Cross multiply
    5,819.86x = 8,724.90 × 4,721.50
  4. Step 4: Simplify right side
    5,819.86x = 41,194,615.35
  5. Step 5: Solve for x
    x = 41,194,615.35/5,819.86
  6. Step 6: Final answer
    x = 7,078.28

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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.