Home / 5,106.37-7,655.95-1,983.78

Finding the Fourth Proportional to 5,106.37, 7,655.95 and 1,983.78

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Solution

The fourth proportional to 5,106.37, 7,655.95 and 1,983.78 is: 2,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.37 : 7,655.95 = 1,983.78 : x
  2. Step 2: Convert to fraction form
    5,106.37/7,655.95 = 1,983.78/x
  3. Step 3: Cross multiply
    5,106.37x = 7,655.95 × 1,983.78
  4. Step 4: Simplify right side
    5,106.37x = 15,187,720.49
  5. Step 5: Solve for x
    x = 15,187,720.49/5,106.37
  6. Step 6: Final answer
    x = 2,974.27

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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.