Home / 3,783.68-5,219.36-2,418.40

Finding the Fourth Proportional to 3,783.68, 5,219.36 and 2,418.40

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Solution

The fourth proportional to 3,783.68, 5,219.36 and 2,418.40 is: 3,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.68 : 5,219.36 = 2,418.40 : x
  2. Step 2: Convert to fraction form
    3,783.68/5,219.36 = 2,418.40/x
  3. Step 3: Cross multiply
    3,783.68x = 5,219.36 × 2,418.40
  4. Step 4: Simplify right side
    3,783.68x = 12,622,500.22
  5. Step 5: Solve for x
    x = 12,622,500.22/3,783.68
  6. Step 6: Final answer
    x = 3,336.04

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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.