Home / 5,076.98-7,005.36-2,981.54

Finding the Fourth Proportional to 5,076.98, 7,005.36 and 2,981.54

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Solution

The fourth proportional to 5,076.98, 7,005.36 and 2,981.54 is: 4,114.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.98 : 7,005.36 = 2,981.54 : x
  2. Step 2: Convert to fraction form
    5,076.98/7,005.36 = 2,981.54/x
  3. Step 3: Cross multiply
    5,076.98x = 7,005.36 × 2,981.54
  4. Step 4: Simplify right side
    5,076.98x = 20,886,761.05
  5. Step 5: Solve for x
    x = 20,886,761.05/5,076.98
  6. Step 6: Final answer
    x = 4,114.01

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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.