Home / 2,678.21-4,013.67-1,702.57

Finding the Fourth Proportional to 2,678.21, 4,013.67 and 1,702.57

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Solution

The fourth proportional to 2,678.21, 4,013.67 and 1,702.57 is: 2,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.21 : 4,013.67 = 1,702.57 : x
  2. Step 2: Convert to fraction form
    2,678.21/4,013.67 = 1,702.57/x
  3. Step 3: Cross multiply
    2,678.21x = 4,013.67 × 1,702.57
  4. Step 4: Simplify right side
    2,678.21x = 6,833,525.55
  5. Step 5: Solve for x
    x = 6,833,525.55/2,678.21
  6. Step 6: Final answer
    x = 2,551.53

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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.