Home / 2,240.36-3,090.96-1,355.84

Finding the Fourth Proportional to 2,240.36, 3,090.96 and 1,355.84

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Solution

The fourth proportional to 2,240.36, 3,090.96 and 1,355.84 is: 1,870.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.36 : 3,090.96 = 1,355.84 : x
  2. Step 2: Convert to fraction form
    2,240.36/3,090.96 = 1,355.84/x
  3. Step 3: Cross multiply
    2,240.36x = 3,090.96 × 1,355.84
  4. Step 4: Simplify right side
    2,240.36x = 4,190,843.34
  5. Step 5: Solve for x
    x = 4,190,843.34/2,240.36
  6. Step 6: Final answer
    x = 1,870.61

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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.