Home / 2,147.94-3,215.84-1,365.98

Finding the Fourth Proportional to 2,147.94, 3,215.84 and 1,365.98

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Solution

The fourth proportional to 2,147.94, 3,215.84 and 1,365.98 is: 2,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.94 : 3,215.84 = 1,365.98 : x
  2. Step 2: Convert to fraction form
    2,147.94/3,215.84 = 1,365.98/x
  3. Step 3: Cross multiply
    2,147.94x = 3,215.84 × 1,365.98
  4. Step 4: Simplify right side
    2,147.94x = 4,392,750.21
  5. Step 5: Solve for x
    x = 4,392,750.21/2,147.94
  6. Step 6: Final answer
    x = 2,045.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.