Home / 2,820.86-4,230.36-1,176.96

Finding the Fourth Proportional to 2,820.86, 4,230.36 and 1,176.96

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Solution

The fourth proportional to 2,820.86, 4,230.36 and 1,176.96 is: 1,765.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.86 : 4,230.36 = 1,176.96 : x
  2. Step 2: Convert to fraction form
    2,820.86/4,230.36 = 1,176.96/x
  3. Step 3: Cross multiply
    2,820.86x = 4,230.36 × 1,176.96
  4. Step 4: Simplify right side
    2,820.86x = 4,978,980.37
  5. Step 5: Solve for x
    x = 4,978,980.37/2,820.86
  6. Step 6: Final answer
    x = 1,765.06

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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.