Home / 3,180.66-4,389.60-1,922.34

Finding the Fourth Proportional to 3,180.66, 4,389.60 and 1,922.34

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Solution

The fourth proportional to 3,180.66, 4,389.60 and 1,922.34 is: 2,653.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.66 : 4,389.60 = 1,922.34 : x
  2. Step 2: Convert to fraction form
    3,180.66/4,389.60 = 1,922.34/x
  3. Step 3: Cross multiply
    3,180.66x = 4,389.60 × 1,922.34
  4. Step 4: Simplify right side
    3,180.66x = 8,438,303.66
  5. Step 5: Solve for x
    x = 8,438,303.66/3,180.66
  6. Step 6: Final answer
    x = 2,653.00

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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.