Home / 4,842.74-7,257.72-1,919.45

Finding the Fourth Proportional to 4,842.74, 7,257.72 and 1,919.45

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Solution

The fourth proportional to 4,842.74, 7,257.72 and 1,919.45 is: 2,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.74 : 7,257.72 = 1,919.45 : x
  2. Step 2: Convert to fraction form
    4,842.74/7,257.72 = 1,919.45/x
  3. Step 3: Cross multiply
    4,842.74x = 7,257.72 × 1,919.45
  4. Step 4: Simplify right side
    4,842.74x = 13,930,794.37
  5. Step 5: Solve for x
    x = 13,930,794.37/4,842.74
  6. Step 6: Final answer
    x = 2,876.64

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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.