Home / 1,964.53-2,710.37-1,218.21

Finding the Fourth Proportional to 1,964.53, 2,710.37 and 1,218.21

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Solution

The fourth proportional to 1,964.53, 2,710.37 and 1,218.21 is: 1,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.53 : 2,710.37 = 1,218.21 : x
  2. Step 2: Convert to fraction form
    1,964.53/2,710.37 = 1,218.21/x
  3. Step 3: Cross multiply
    1,964.53x = 2,710.37 × 1,218.21
  4. Step 4: Simplify right side
    1,964.53x = 3,301,799.84
  5. Step 5: Solve for x
    x = 3,301,799.84/1,964.53
  6. Step 6: Final answer
    x = 1,680.71

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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.