Home / 2,418.35-3,334.80-1,790.20

Finding the Fourth Proportional to 2,418.35, 3,334.80 and 1,790.20

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Solution

The fourth proportional to 2,418.35, 3,334.80 and 1,790.20 is: 2,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.35 : 3,334.80 = 1,790.20 : x
  2. Step 2: Convert to fraction form
    2,418.35/3,334.80 = 1,790.20/x
  3. Step 3: Cross multiply
    2,418.35x = 3,334.80 × 1,790.20
  4. Step 4: Simplify right side
    2,418.35x = 5,969,933.34
  5. Step 5: Solve for x
    x = 5,969,933.34/2,418.35
  6. Step 6: Final answer
    x = 2,468.60

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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.