Home / 4,759.58-7,139.37-2,780.36

Finding the Fourth Proportional to 4,759.58, 7,139.37 and 2,780.36

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Solution

The fourth proportional to 4,759.58, 7,139.37 and 2,780.36 is: 4,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.58 : 7,139.37 = 2,780.36 : x
  2. Step 2: Convert to fraction form
    4,759.58/7,139.37 = 2,780.36/x
  3. Step 3: Cross multiply
    4,759.58x = 7,139.37 × 2,780.36
  4. Step 4: Simplify right side
    4,759.58x = 19,850,018.77
  5. Step 5: Solve for x
    x = 19,850,018.77/4,759.58
  6. Step 6: Final answer
    x = 4,170.54

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Similar ratio
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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.