Home / 2,980.28-4,112.71-1,653.94

Finding the Fourth Proportional to 2,980.28, 4,112.71 and 1,653.94

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Solution

The fourth proportional to 2,980.28, 4,112.71 and 1,653.94 is: 2,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.28 : 4,112.71 = 1,653.94 : x
  2. Step 2: Convert to fraction form
    2,980.28/4,112.71 = 1,653.94/x
  3. Step 3: Cross multiply
    2,980.28x = 4,112.71 × 1,653.94
  4. Step 4: Simplify right side
    2,980.28x = 6,802,175.58
  5. Step 5: Solve for x
    x = 6,802,175.58/2,980.28
  6. Step 6: Final answer
    x = 2,282.39

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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.