Home / 3,169.16-4,750.55-1,321.30

Finding the Fourth Proportional to 3,169.16, 4,750.55 and 1,321.30

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Solution

The fourth proportional to 3,169.16, 4,750.55 and 1,321.30 is: 1,980.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.16 : 4,750.55 = 1,321.30 : x
  2. Step 2: Convert to fraction form
    3,169.16/4,750.55 = 1,321.30/x
  3. Step 3: Cross multiply
    3,169.16x = 4,750.55 × 1,321.30
  4. Step 4: Simplify right side
    3,169.16x = 6,276,871.36
  5. Step 5: Solve for x
    x = 6,276,871.36/3,169.16
  6. Step 6: Final answer
    x = 1,980.61

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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.