Home / 2,977.07-4,108.37-1,930.95

Finding the Fourth Proportional to 2,977.07, 4,108.37 and 1,930.95

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Solution

The fourth proportional to 2,977.07, 4,108.37 and 1,930.95 is: 2,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.07 : 4,108.37 = 1,930.95 : x
  2. Step 2: Convert to fraction form
    2,977.07/4,108.37 = 1,930.95/x
  3. Step 3: Cross multiply
    2,977.07x = 4,108.37 × 1,930.95
  4. Step 4: Simplify right side
    2,977.07x = 7,933,047.40
  5. Step 5: Solve for x
    x = 7,933,047.40/2,977.07
  6. Step 6: Final answer
    x = 2,664.72

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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.