Home / 5,101.70-7,040.40-2,977.34

Finding the Fourth Proportional to 5,101.70, 7,040.40 and 2,977.34

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Solution

The fourth proportional to 5,101.70, 7,040.40 and 2,977.34 is: 4,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.70 : 7,040.40 = 2,977.34 : x
  2. Step 2: Convert to fraction form
    5,101.70/7,040.40 = 2,977.34/x
  3. Step 3: Cross multiply
    5,101.70x = 7,040.40 × 2,977.34
  4. Step 4: Simplify right side
    5,101.70x = 20,961,664.54
  5. Step 5: Solve for x
    x = 20,961,664.54/5,101.70
  6. Step 6: Final answer
    x = 4,108.76

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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.