Home / 2,261.85-3,120.99-1,377.93

Finding the Fourth Proportional to 2,261.85, 3,120.99 and 1,377.93

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Solution

The fourth proportional to 2,261.85, 3,120.99 and 1,377.93 is: 1,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.85 : 3,120.99 = 1,377.93 : x
  2. Step 2: Convert to fraction form
    2,261.85/3,120.99 = 1,377.93/x
  3. Step 3: Cross multiply
    2,261.85x = 3,120.99 × 1,377.93
  4. Step 4: Simplify right side
    2,261.85x = 4,300,505.75
  5. Step 5: Solve for x
    x = 4,300,505.75/2,261.85
  6. Step 6: Final answer
    x = 1,901.32

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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.