Home / 2,240.42-3,090.62-1,308.38

Finding the Fourth Proportional to 2,240.42, 3,090.62 and 1,308.38

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Solution

The fourth proportional to 2,240.42, 3,090.62 and 1,308.38 is: 1,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.42 : 3,090.62 = 1,308.38 : x
  2. Step 2: Convert to fraction form
    2,240.42/3,090.62 = 1,308.38/x
  3. Step 3: Cross multiply
    2,240.42x = 3,090.62 × 1,308.38
  4. Step 4: Simplify right side
    2,240.42x = 4,043,693.21
  5. Step 5: Solve for x
    x = 4,043,693.21/2,240.42
  6. Step 6: Final answer
    x = 1,804.89

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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.