Home / 2,261.26-3,120.37-1,376.92

Finding the Fourth Proportional to 2,261.26, 3,120.37 and 1,376.92

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Solution

The fourth proportional to 2,261.26, 3,120.37 and 1,376.92 is: 1,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.26 : 3,120.37 = 1,376.92 : x
  2. Step 2: Convert to fraction form
    2,261.26/3,120.37 = 1,376.92/x
  3. Step 3: Cross multiply
    2,261.26x = 3,120.37 × 1,376.92
  4. Step 4: Simplify right side
    2,261.26x = 4,296,499.86
  5. Step 5: Solve for x
    x = 4,296,499.86/2,261.26
  6. Step 6: Final answer
    x = 1,900.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.