Home / 2,238.68-3,090.40-1,399.93

Finding the Fourth Proportional to 2,238.68, 3,090.40 and 1,399.93

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Solution

The fourth proportional to 2,238.68, 3,090.40 and 1,399.93 is: 1,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.68 : 3,090.40 = 1,399.93 : x
  2. Step 2: Convert to fraction form
    2,238.68/3,090.40 = 1,399.93/x
  3. Step 3: Cross multiply
    2,238.68x = 3,090.40 × 1,399.93
  4. Step 4: Simplify right side
    2,238.68x = 4,326,332.45
  5. Step 5: Solve for x
    x = 4,326,332.45/2,238.68
  6. Step 6: Final answer
    x = 1,932.54

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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.