Home / 3,777.35-5,213.40-3,611.30

Finding the Fourth Proportional to 3,777.35, 5,213.40 and 3,611.30

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Solution

The fourth proportional to 3,777.35, 5,213.40 and 3,611.30 is: 4,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.35 : 5,213.40 = 3,611.30 : x
  2. Step 2: Convert to fraction form
    3,777.35/5,213.40 = 3,611.30/x
  3. Step 3: Cross multiply
    3,777.35x = 5,213.40 × 3,611.30
  4. Step 4: Simplify right side
    3,777.35x = 18,827,111.81
  5. Step 5: Solve for x
    x = 18,827,111.81/3,777.35
  6. Step 6: Final answer
    x = 4,984.22

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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.