Home / 5,163.09-7,125.21-3,038.78

Finding the Fourth Proportional to 5,163.09, 7,125.21 and 3,038.78

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Solution

The fourth proportional to 5,163.09, 7,125.21 and 3,038.78 is: 4,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.09 : 7,125.21 = 3,038.78 : x
  2. Step 2: Convert to fraction form
    5,163.09/7,125.21 = 3,038.78/x
  3. Step 3: Cross multiply
    5,163.09x = 7,125.21 × 3,038.78
  4. Step 4: Simplify right side
    5,163.09x = 21,651,910.02
  5. Step 5: Solve for x
    x = 21,651,910.02/5,163.09
  6. Step 6: Final answer
    x = 4,193.60

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1.5x scale

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.