Home / 3,994.02-5,511.51-2,315.30

Finding the Fourth Proportional to 3,994.02, 5,511.51 and 2,315.30

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Solution

The fourth proportional to 3,994.02, 5,511.51 and 2,315.30 is: 3,194.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.02 : 5,511.51 = 2,315.30 : x
  2. Step 2: Convert to fraction form
    3,994.02/5,511.51 = 2,315.30/x
  3. Step 3: Cross multiply
    3,994.02x = 5,511.51 × 2,315.30
  4. Step 4: Simplify right side
    3,994.02x = 12,760,771.55
  5. Step 5: Solve for x
    x = 12,760,771.55/3,994.02
  6. Step 6: Final answer
    x = 3,194.97

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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.