Home / 3,065.88-4,611.78-2,638.20

Finding the Fourth Proportional to 3,065.88, 4,611.78 and 2,638.20

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Solution

The fourth proportional to 3,065.88, 4,611.78 and 2,638.20 is: 3,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.88 : 4,611.78 = 2,638.20 : x
  2. Step 2: Convert to fraction form
    3,065.88/4,611.78 = 2,638.20/x
  3. Step 3: Cross multiply
    3,065.88x = 4,611.78 × 2,638.20
  4. Step 4: Simplify right side
    3,065.88x = 12,166,798.00
  5. Step 5: Solve for x
    x = 12,166,798.00/3,065.88
  6. Step 6: Final answer
    x = 3,968.45

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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.