Home / 1,965.55-2,712.47-1,081.33

Finding the Fourth Proportional to 1,965.55, 2,712.47 and 1,081.33

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Solution

The fourth proportional to 1,965.55, 2,712.47 and 1,081.33 is: 1,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.55 : 2,712.47 = 1,081.33 : x
  2. Step 2: Convert to fraction form
    1,965.55/2,712.47 = 1,081.33/x
  3. Step 3: Cross multiply
    1,965.55x = 2,712.47 × 1,081.33
  4. Step 4: Simplify right side
    1,965.55x = 2,933,056.22
  5. Step 5: Solve for x
    x = 2,933,056.22/1,965.55
  6. Step 6: Final answer
    x = 1,492.24

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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.