Home / 1,964.18-2,709.80-1,124.43

Finding the Fourth Proportional to 1,964.18, 2,709.80 and 1,124.43

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Solution

The fourth proportional to 1,964.18, 2,709.80 and 1,124.43 is: 1,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.18 : 2,709.80 = 1,124.43 : x
  2. Step 2: Convert to fraction form
    1,964.18/2,709.80 = 1,124.43/x
  3. Step 3: Cross multiply
    1,964.18x = 2,709.80 × 1,124.43
  4. Step 4: Simplify right side
    1,964.18x = 3,046,979.58
  5. Step 5: Solve for x
    x = 3,046,979.58/1,964.18
  6. Step 6: Final answer
    x = 1,551.27

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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.