Home / 5,106.75-7,661.95-2,511.51

Finding the Fourth Proportional to 5,106.75, 7,661.95 and 2,511.51

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Solution

The fourth proportional to 5,106.75, 7,661.95 and 2,511.51 is: 3,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.75 : 7,661.95 = 2,511.51 : x
  2. Step 2: Convert to fraction form
    5,106.75/7,661.95 = 2,511.51/x
  3. Step 3: Cross multiply
    5,106.75x = 7,661.95 × 2,511.51
  4. Step 4: Simplify right side
    5,106.75x = 19,243,064.04
  5. Step 5: Solve for x
    x = 19,243,064.04/5,106.75
  6. Step 6: Final answer
    x = 3,768.16

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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.