Home / 5,163.53-7,125.51-2,805.67

Finding the Fourth Proportional to 5,163.53, 7,125.51 and 2,805.67

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Solution

The fourth proportional to 5,163.53, 7,125.51 and 2,805.67 is: 3,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.53 : 7,125.51 = 2,805.67 : x
  2. Step 2: Convert to fraction form
    5,163.53/7,125.51 = 2,805.67/x
  3. Step 3: Cross multiply
    5,163.53x = 7,125.51 × 2,805.67
  4. Step 4: Simplify right side
    5,163.53x = 19,991,811.83
  5. Step 5: Solve for x
    x = 19,991,811.83/5,163.53
  6. Step 6: Final answer
    x = 3,871.74

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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.