Home / 2,148.18-3,222.21-993.93

Finding the Fourth Proportional to 2,148.18, 3,222.21 and 993.93

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Solution

The fourth proportional to 2,148.18, 3,222.21 and 993.93 is: 1,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.18 : 3,222.21 = 993.93 : x
  2. Step 2: Convert to fraction form
    2,148.18/3,222.21 = 993.93/x
  3. Step 3: Cross multiply
    2,148.18x = 3,222.21 × 993.93
  4. Step 4: Simplify right side
    2,148.18x = 3,202,651.19
  5. Step 5: Solve for x
    x = 3,202,651.19/2,148.18
  6. Step 6: Final answer
    x = 1,490.87

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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.