Home / 4,608.18-6,911.39-1,321.29

Finding the Fourth Proportional to 4,608.18, 6,911.39 and 1,321.29

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Solution

The fourth proportional to 4,608.18, 6,911.39 and 1,321.29 is: 1,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.18 : 6,911.39 = 1,321.29 : x
  2. Step 2: Convert to fraction form
    4,608.18/6,911.39 = 1,321.29/x
  3. Step 3: Cross multiply
    4,608.18x = 6,911.39 × 1,321.29
  4. Step 4: Simplify right side
    4,608.18x = 9,131,953.80
  5. Step 5: Solve for x
    x = 9,131,953.80/4,608.18
  6. Step 6: Final answer
    x = 1,981.68

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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.