Home / 2,980.28-4,112.70-1,653.96

Finding the Fourth Proportional to 2,980.28, 4,112.70 and 1,653.96

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Solution

The fourth proportional to 2,980.28, 4,112.70 and 1,653.96 is: 2,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.28 : 4,112.70 = 1,653.96 : x
  2. Step 2: Convert to fraction form
    2,980.28/4,112.70 = 1,653.96/x
  3. Step 3: Cross multiply
    2,980.28x = 4,112.70 × 1,653.96
  4. Step 4: Simplify right side
    2,980.28x = 6,802,241.29
  5. Step 5: Solve for x
    x = 6,802,241.29/2,980.28
  6. Step 6: Final answer
    x = 2,282.42

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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.