Home / 1,964.08-2,708.40-1,404.64

Finding the Fourth Proportional to 1,964.08, 2,708.40 and 1,404.64

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Solution

The fourth proportional to 1,964.08, 2,708.40 and 1,404.64 is: 1,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.08 : 2,708.40 = 1,404.64 : x
  2. Step 2: Convert to fraction form
    1,964.08/2,708.40 = 1,404.64/x
  3. Step 3: Cross multiply
    1,964.08x = 2,708.40 × 1,404.64
  4. Step 4: Simplify right side
    1,964.08x = 3,804,326.98
  5. Step 5: Solve for x
    x = 3,804,326.98/1,964.08
  6. Step 6: Final answer
    x = 1,936.95

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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.