Home / 2,684.90-4,018.70-1,384.58

Finding the Fourth Proportional to 2,684.90, 4,018.70 and 1,384.58

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Solution

The fourth proportional to 2,684.90, 4,018.70 and 1,384.58 is: 2,072.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.90 : 4,018.70 = 1,384.58 : x
  2. Step 2: Convert to fraction form
    2,684.90/4,018.70 = 1,384.58/x
  3. Step 3: Cross multiply
    2,684.90x = 4,018.70 × 1,384.58
  4. Step 4: Simplify right side
    2,684.90x = 5,564,211.65
  5. Step 5: Solve for x
    x = 5,564,211.65/2,684.90
  6. Step 6: Final answer
    x = 2,072.41

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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.