Home / 1,647.03-2,272.96-983.81

Finding the Fourth Proportional to 1,647.03, 2,272.96 and 983.81

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Solution

The fourth proportional to 1,647.03, 2,272.96 and 983.81 is: 1,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.03 : 2,272.96 = 983.81 : x
  2. Step 2: Convert to fraction form
    1,647.03/2,272.96 = 983.81/x
  3. Step 3: Cross multiply
    1,647.03x = 2,272.96 × 983.81
  4. Step 4: Simplify right side
    1,647.03x = 2,236,167.69
  5. Step 5: Solve for x
    x = 2,236,167.69/1,647.03
  6. Step 6: Final answer
    x = 1,357.69

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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.