Home / 4,877.78-7,317.75-2,685.38

Finding the Fourth Proportional to 4,877.78, 7,317.75 and 2,685.38

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Solution

The fourth proportional to 4,877.78, 7,317.75 and 2,685.38 is: 4,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.78 : 7,317.75 = 2,685.38 : x
  2. Step 2: Convert to fraction form
    4,877.78/7,317.75 = 2,685.38/x
  3. Step 3: Cross multiply
    4,877.78x = 7,317.75 × 2,685.38
  4. Step 4: Simplify right side
    4,877.78x = 19,650,939.50
  5. Step 5: Solve for x
    x = 19,650,939.50/4,877.78
  6. Step 6: Final answer
    x = 4,028.66

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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.