Home / 2,240.27-3,090.75-1,355.75

Finding the Fourth Proportional to 2,240.27, 3,090.75 and 1,355.75

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Solution

The fourth proportional to 2,240.27, 3,090.75 and 1,355.75 is: 1,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.27 : 3,090.75 = 1,355.75 : x
  2. Step 2: Convert to fraction form
    2,240.27/3,090.75 = 1,355.75/x
  3. Step 3: Cross multiply
    2,240.27x = 3,090.75 × 1,355.75
  4. Step 4: Simplify right side
    2,240.27x = 4,190,288.65
  5. Step 5: Solve for x
    x = 4,190,288.65/2,240.27
  6. Step 6: Final answer
    x = 1,870.44

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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.