Home / 5,619.54-8,430.21-2,110.77

Finding the Fourth Proportional to 5,619.54, 8,430.21 and 2,110.77

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Solution

The fourth proportional to 5,619.54, 8,430.21 and 2,110.77 is: 3,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.54 : 8,430.21 = 2,110.77 : x
  2. Step 2: Convert to fraction form
    5,619.54/8,430.21 = 2,110.77/x
  3. Step 3: Cross multiply
    5,619.54x = 8,430.21 × 2,110.77
  4. Step 4: Simplify right side
    5,619.54x = 17,794,234.36
  5. Step 5: Solve for x
    x = 17,794,234.36/5,619.54
  6. Step 6: Final answer
    x = 3,166.49

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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.