Home / 1,965.19-2,712.35-1,302.07

Finding the Fourth Proportional to 1,965.19, 2,712.35 and 1,302.07

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Solution

The fourth proportional to 1,965.19, 2,712.35 and 1,302.07 is: 1,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.19 : 2,712.35 = 1,302.07 : x
  2. Step 2: Convert to fraction form
    1,965.19/2,712.35 = 1,302.07/x
  3. Step 3: Cross multiply
    1,965.19x = 2,712.35 × 1,302.07
  4. Step 4: Simplify right side
    1,965.19x = 3,531,669.56
  5. Step 5: Solve for x
    x = 3,531,669.56/1,965.19
  6. Step 6: Final answer
    x = 1,797.11

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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.