Home / 5,121.99-7,683.48-1,373.72

Finding the Fourth Proportional to 5,121.99, 7,683.48 and 1,373.72

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Solution

The fourth proportional to 5,121.99, 7,683.48 and 1,373.72 is: 2,060.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.99 : 7,683.48 = 1,373.72 : x
  2. Step 2: Convert to fraction form
    5,121.99/7,683.48 = 1,373.72/x
  3. Step 3: Cross multiply
    5,121.99x = 7,683.48 × 1,373.72
  4. Step 4: Simplify right side
    5,121.99x = 10,554,911.73
  5. Step 5: Solve for x
    x = 10,554,911.73/5,121.99
  6. Step 6: Final answer
    x = 2,060.71

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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.