Home / 4,878.26-7,316.82-2,106.81

Finding the Fourth Proportional to 4,878.26, 7,316.82 and 2,106.81

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Solution

The fourth proportional to 4,878.26, 7,316.82 and 2,106.81 is: 3,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.26 : 7,316.82 = 2,106.81 : x
  2. Step 2: Convert to fraction form
    4,878.26/7,316.82 = 2,106.81/x
  3. Step 3: Cross multiply
    4,878.26x = 7,316.82 × 2,106.81
  4. Step 4: Simplify right side
    4,878.26x = 15,415,159.91
  5. Step 5: Solve for x
    x = 15,415,159.91/4,878.26
  6. Step 6: Final answer
    x = 3,159.97

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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.