Home / 2,418.38-3,315.63-2,374.64

Finding the Fourth Proportional to 2,418.38, 3,315.63 and 2,374.64

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Solution

The fourth proportional to 2,418.38, 3,315.63 and 2,374.64 is: 3,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.38 : 3,315.63 = 2,374.64 : x
  2. Step 2: Convert to fraction form
    2,418.38/3,315.63 = 2,374.64/x
  3. Step 3: Cross multiply
    2,418.38x = 3,315.63 × 2,374.64
  4. Step 4: Simplify right side
    2,418.38x = 7,873,451.03
  5. Step 5: Solve for x
    x = 7,873,451.03/2,418.38
  6. Step 6: Final answer
    x = 3,255.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.