Home / 2,240.25-3,091.04-1,355.87

Finding the Fourth Proportional to 2,240.25, 3,091.04 and 1,355.87

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Solution

The fourth proportional to 2,240.25, 3,091.04 and 1,355.87 is: 1,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.25 : 3,091.04 = 1,355.87 : x
  2. Step 2: Convert to fraction form
    2,240.25/3,091.04 = 1,355.87/x
  3. Step 3: Cross multiply
    2,240.25x = 3,091.04 × 1,355.87
  4. Step 4: Simplify right side
    2,240.25x = 4,191,032.95
  5. Step 5: Solve for x
    x = 4,191,032.95/2,240.25
  6. Step 6: Final answer
    x = 1,870.79

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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.