Home / 5,121.10-7,683.27-3,174.67

Finding the Fourth Proportional to 5,121.10, 7,683.27 and 3,174.67

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Solution

The fourth proportional to 5,121.10, 7,683.27 and 3,174.67 is: 4,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.10 : 7,683.27 = 3,174.67 : x
  2. Step 2: Convert to fraction form
    5,121.10/7,683.27 = 3,174.67/x
  3. Step 3: Cross multiply
    5,121.10x = 7,683.27 × 3,174.67
  4. Step 4: Simplify right side
    5,121.10x = 24,391,846.77
  5. Step 5: Solve for x
    x = 24,391,846.77/5,121.10
  6. Step 6: Final answer
    x = 4,763.01

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1.5x scale

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.