Home / 3,926.24-5,418-2,247.80

Finding the Fourth Proportional to 3,926.24, 5,418 and 2,247.80

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Solution

The fourth proportional to 3,926.24, 5,418 and 2,247.80 is: 3,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.24 : 5,418 = 2,247.80 : x
  2. Step 2: Convert to fraction form
    3,926.24/5,418 = 2,247.80/x
  3. Step 3: Cross multiply
    3,926.24x = 5,418 × 2,247.80
  4. Step 4: Simplify right side
    3,926.24x = 12,178,580.40
  5. Step 5: Solve for x
    x = 12,178,580.40/3,926.24
  6. Step 6: Final answer
    x = 3,101.84

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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.