Home / 1,981.16-2,735.09-1,352.63

Finding the Fourth Proportional to 1,981.16, 2,735.09 and 1,352.63

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Solution

The fourth proportional to 1,981.16, 2,735.09 and 1,352.63 is: 1,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.16 : 2,735.09 = 1,352.63 : x
  2. Step 2: Convert to fraction form
    1,981.16/2,735.09 = 1,352.63/x
  3. Step 3: Cross multiply
    1,981.16x = 2,735.09 × 1,352.63
  4. Step 4: Simplify right side
    1,981.16x = 3,699,554.49
  5. Step 5: Solve for x
    x = 3,699,554.49/1,981.16
  6. Step 6: Final answer
    x = 1,867.37

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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.