Home / 2,405.88-3,320.07-1,343.64

Finding the Fourth Proportional to 2,405.88, 3,320.07 and 1,343.64

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Solution

The fourth proportional to 2,405.88, 3,320.07 and 1,343.64 is: 1,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.88 : 3,320.07 = 1,343.64 : x
  2. Step 2: Convert to fraction form
    2,405.88/3,320.07 = 1,343.64/x
  3. Step 3: Cross multiply
    2,405.88x = 3,320.07 × 1,343.64
  4. Step 4: Simplify right side
    2,405.88x = 4,460,978.85
  5. Step 5: Solve for x
    x = 4,460,978.85/2,405.88
  6. Step 6: Final answer
    x = 1,854.20

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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.