Home / 3,150.12-4,720.05-1,917.93

Finding the Fourth Proportional to 3,150.12, 4,720.05 and 1,917.93

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Solution

The fourth proportional to 3,150.12, 4,720.05 and 1,917.93 is: 2,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.12 : 4,720.05 = 1,917.93 : x
  2. Step 2: Convert to fraction form
    3,150.12/4,720.05 = 1,917.93/x
  3. Step 3: Cross multiply
    3,150.12x = 4,720.05 × 1,917.93
  4. Step 4: Simplify right side
    3,150.12x = 9,052,725.50
  5. Step 5: Solve for x
    x = 9,052,725.50/3,150.12
  6. Step 6: Final answer
    x = 2,873.77

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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.