Home / 4,878.47-7,319.07-1,958.82

Finding the Fourth Proportional to 4,878.47, 7,319.07 and 1,958.82

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Solution

The fourth proportional to 4,878.47, 7,319.07 and 1,958.82 is: 2,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.47 : 7,319.07 = 1,958.82 : x
  2. Step 2: Convert to fraction form
    4,878.47/7,319.07 = 1,958.82/x
  3. Step 3: Cross multiply
    4,878.47x = 7,319.07 × 1,958.82
  4. Step 4: Simplify right side
    4,878.47x = 14,336,733.35
  5. Step 5: Solve for x
    x = 14,336,733.35/4,878.47
  6. Step 6: Final answer
    x = 2,938.78

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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.