Home / 3,945-5,444.58-2,266.80

Finding the Fourth Proportional to 3,945, 5,444.58 and 2,266.80

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Solution

The fourth proportional to 3,945, 5,444.58 and 2,266.80 is: 3,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945 : 5,444.58 = 2,266.80 : x
  2. Step 2: Convert to fraction form
    3,945/5,444.58 = 2,266.80/x
  3. Step 3: Cross multiply
    3,945x = 5,444.58 × 2,266.80
  4. Step 4: Simplify right side
    3,945x = 12,341,773.94
  5. Step 5: Solve for x
    x = 12,341,773.94/3,945
  6. Step 6: Final answer
    x = 3,128.46

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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.