Home / 3,181.02-4,774.41-2,138.46

Finding the Fourth Proportional to 3,181.02, 4,774.41 and 2,138.46

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Solution

The fourth proportional to 3,181.02, 4,774.41 and 2,138.46 is: 3,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.02 : 4,774.41 = 2,138.46 : x
  2. Step 2: Convert to fraction form
    3,181.02/4,774.41 = 2,138.46/x
  3. Step 3: Cross multiply
    3,181.02x = 4,774.41 × 2,138.46
  4. Step 4: Simplify right side
    3,181.02x = 10,209,884.81
  5. Step 5: Solve for x
    x = 10,209,884.81/3,181.02
  6. Step 6: Final answer
    x = 3,209.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.