Home / 3,919.03-5,407.87-2,240.84

Finding the Fourth Proportional to 3,919.03, 5,407.87 and 2,240.84

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Solution

The fourth proportional to 3,919.03, 5,407.87 and 2,240.84 is: 3,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.03 : 5,407.87 = 2,240.84 : x
  2. Step 2: Convert to fraction form
    3,919.03/5,407.87 = 2,240.84/x
  3. Step 3: Cross multiply
    3,919.03x = 5,407.87 × 2,240.84
  4. Step 4: Simplify right side
    3,919.03x = 12,118,171.41
  5. Step 5: Solve for x
    x = 12,118,171.41/3,919.03
  6. Step 6: Final answer
    x = 3,092.14

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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.