Home / 2,955.09-4,428.45-1,639.42

Finding the Fourth Proportional to 2,955.09, 4,428.45 and 1,639.42

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Solution

The fourth proportional to 2,955.09, 4,428.45 and 1,639.42 is: 2,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.09 : 4,428.45 = 1,639.42 : x
  2. Step 2: Convert to fraction form
    2,955.09/4,428.45 = 1,639.42/x
  3. Step 3: Cross multiply
    2,955.09x = 4,428.45 × 1,639.42
  4. Step 4: Simplify right side
    2,955.09x = 7,260,089.50
  5. Step 5: Solve for x
    x = 7,260,089.50/2,955.09
  6. Step 6: Final answer
    x = 2,456.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.