Home / 3,211.60-4,817.40-2,726.80

Finding the Fourth Proportional to 3,211.60, 4,817.40 and 2,726.80

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Solution

The fourth proportional to 3,211.60, 4,817.40 and 2,726.80 is: 4,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.60 : 4,817.40 = 2,726.80 : x
  2. Step 2: Convert to fraction form
    3,211.60/4,817.40 = 2,726.80/x
  3. Step 3: Cross multiply
    3,211.60x = 4,817.40 × 2,726.80
  4. Step 4: Simplify right side
    3,211.60x = 13,136,086.32
  5. Step 5: Solve for x
    x = 13,136,086.32/3,211.60
  6. Step 6: Final answer
    x = 4,090.20

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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.