Home / 3,040.45-4,196.47-1,920.68

Finding the Fourth Proportional to 3,040.45, 4,196.47 and 1,920.68

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Solution

The fourth proportional to 3,040.45, 4,196.47 and 1,920.68 is: 2,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.45 : 4,196.47 = 1,920.68 : x
  2. Step 2: Convert to fraction form
    3,040.45/4,196.47 = 1,920.68/x
  3. Step 3: Cross multiply
    3,040.45x = 4,196.47 × 1,920.68
  4. Step 4: Simplify right side
    3,040.45x = 8,060,059.22
  5. Step 5: Solve for x
    x = 8,060,059.22/3,040.45
  6. Step 6: Final answer
    x = 2,650.94

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1.5x scale

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.