Home / 3,077.80-4,611.90-2,588.20

Finding the Fourth Proportional to 3,077.80, 4,611.90 and 2,588.20

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Solution

The fourth proportional to 3,077.80, 4,611.90 and 2,588.20 is: 3,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.80 : 4,611.90 = 2,588.20 : x
  2. Step 2: Convert to fraction form
    3,077.80/4,611.90 = 2,588.20/x
  3. Step 3: Cross multiply
    3,077.80x = 4,611.90 × 2,588.20
  4. Step 4: Simplify right side
    3,077.80x = 11,936,519.58
  5. Step 5: Solve for x
    x = 11,936,519.58/3,077.80
  6. Step 6: Final answer
    x = 3,878.26

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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.