Home / 1,954.45-2,697.60-1,291.33

Finding the Fourth Proportional to 1,954.45, 2,697.60 and 1,291.33

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Solution

The fourth proportional to 1,954.45, 2,697.60 and 1,291.33 is: 1,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.45 : 2,697.60 = 1,291.33 : x
  2. Step 2: Convert to fraction form
    1,954.45/2,697.60 = 1,291.33/x
  3. Step 3: Cross multiply
    1,954.45x = 2,697.60 × 1,291.33
  4. Step 4: Simplify right side
    1,954.45x = 3,483,491.81
  5. Step 5: Solve for x
    x = 3,483,491.81/1,954.45
  6. Step 6: Final answer
    x = 1,782.34

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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.