Home / 4,971.24-6,860.64-2,876.56

Finding the Fourth Proportional to 4,971.24, 6,860.64 and 2,876.56

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Solution

The fourth proportional to 4,971.24, 6,860.64 and 2,876.56 is: 3,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.24 : 6,860.64 = 2,876.56 : x
  2. Step 2: Convert to fraction form
    4,971.24/6,860.64 = 2,876.56/x
  3. Step 3: Cross multiply
    4,971.24x = 6,860.64 × 2,876.56
  4. Step 4: Simplify right side
    4,971.24x = 19,735,042.60
  5. Step 5: Solve for x
    x = 19,735,042.60/4,971.24
  6. Step 6: Final answer
    x = 3,969.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.