Home / 2,107.32-3,159.90-1,183.51

Finding the Fourth Proportional to 2,107.32, 3,159.90 and 1,183.51

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Solution

The fourth proportional to 2,107.32, 3,159.90 and 1,183.51 is: 1,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.32 : 3,159.90 = 1,183.51 : x
  2. Step 2: Convert to fraction form
    2,107.32/3,159.90 = 1,183.51/x
  3. Step 3: Cross multiply
    2,107.32x = 3,159.90 × 1,183.51
  4. Step 4: Simplify right side
    2,107.32x = 3,739,773.25
  5. Step 5: Solve for x
    x = 3,739,773.25/2,107.32
  6. Step 6: Final answer
    x = 1,774.66

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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.