Home / 2,415.38-3,333.20-1,367.42

Finding the Fourth Proportional to 2,415.38, 3,333.20 and 1,367.42

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Solution

The fourth proportional to 2,415.38, 3,333.20 and 1,367.42 is: 1,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.38 : 3,333.20 = 1,367.42 : x
  2. Step 2: Convert to fraction form
    2,415.38/3,333.20 = 1,367.42/x
  3. Step 3: Cross multiply
    2,415.38x = 3,333.20 × 1,367.42
  4. Step 4: Simplify right side
    2,415.38x = 4,557,860.84
  5. Step 5: Solve for x
    x = 4,557,860.84/2,415.38
  6. Step 6: Final answer
    x = 1,887.02

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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.