Home / 2,678.56-4,021.44-1,702.24

Finding the Fourth Proportional to 2,678.56, 4,021.44 and 1,702.24

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Solution

The fourth proportional to 2,678.56, 4,021.44 and 1,702.24 is: 2,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.56 : 4,021.44 = 1,702.24 : x
  2. Step 2: Convert to fraction form
    2,678.56/4,021.44 = 1,702.24/x
  3. Step 3: Cross multiply
    2,678.56x = 4,021.44 × 1,702.24
  4. Step 4: Simplify right side
    2,678.56x = 6,845,456.03
  5. Step 5: Solve for x
    x = 6,845,456.03/2,678.56
  6. Step 6: Final answer
    x = 2,555.65

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1.5x scale

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.