Home / 1,971.44-2,716.48-1,340.87

Finding the Fourth Proportional to 1,971.44, 2,716.48 and 1,340.87

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Solution

The fourth proportional to 1,971.44, 2,716.48 and 1,340.87 is: 1,847.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.44 : 2,716.48 = 1,340.87 : x
  2. Step 2: Convert to fraction form
    1,971.44/2,716.48 = 1,340.87/x
  3. Step 3: Cross multiply
    1,971.44x = 2,716.48 × 1,340.87
  4. Step 4: Simplify right side
    1,971.44x = 3,642,457.60
  5. Step 5: Solve for x
    x = 3,642,457.60/1,971.44
  6. Step 6: Final answer
    x = 1,847.61

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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.