Home / 2,657.06-3,986.81-1,013.98

Finding the Fourth Proportional to 2,657.06, 3,986.81 and 1,013.98

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Solution

The fourth proportional to 2,657.06, 3,986.81 and 1,013.98 is: 1,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.06 : 3,986.81 = 1,013.98 : x
  2. Step 2: Convert to fraction form
    2,657.06/3,986.81 = 1,013.98/x
  3. Step 3: Cross multiply
    2,657.06x = 3,986.81 × 1,013.98
  4. Step 4: Simplify right side
    2,657.06x = 4,042,520.60
  5. Step 5: Solve for x
    x = 4,042,520.60/2,657.06
  6. Step 6: Final answer
    x = 1,521.43

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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.