Home / 2,056.94-2,838.78-1,172.88

Finding the Fourth Proportional to 2,056.94, 2,838.78 and 1,172.88

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Solution

The fourth proportional to 2,056.94, 2,838.78 and 1,172.88 is: 1,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.94 : 2,838.78 = 1,172.88 : x
  2. Step 2: Convert to fraction form
    2,056.94/2,838.78 = 1,172.88/x
  3. Step 3: Cross multiply
    2,056.94x = 2,838.78 × 1,172.88
  4. Step 4: Simplify right side
    2,056.94x = 3,329,534.09
  5. Step 5: Solve for x
    x = 3,329,534.09/2,056.94
  6. Step 6: Final answer
    x = 1,618.68

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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.