Home / 3,777.21-5,212.89-2,184.30

Finding the Fourth Proportional to 3,777.21, 5,212.89 and 2,184.30

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Solution

The fourth proportional to 3,777.21, 5,212.89 and 2,184.30 is: 3,014.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.21 : 5,212.89 = 2,184.30 : x
  2. Step 2: Convert to fraction form
    3,777.21/5,212.89 = 2,184.30/x
  3. Step 3: Cross multiply
    3,777.21x = 5,212.89 × 2,184.30
  4. Step 4: Simplify right side
    3,777.21x = 11,386,515.63
  5. Step 5: Solve for x
    x = 11,386,515.63/3,777.21
  6. Step 6: Final answer
    x = 3,014.53

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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.