Home / 6,855.60-10,283.40-4,090.80

Finding the Fourth Proportional to 6,855.60, 10,283.40 and 4,090.80

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Solution

The fourth proportional to 6,855.60, 10,283.40 and 4,090.80 is: 6,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.60 : 10,283.40 = 4,090.80 : x
  2. Step 2: Convert to fraction form
    6,855.60/10,283.40 = 4,090.80/x
  3. Step 3: Cross multiply
    6,855.60x = 10,283.40 × 4,090.80
  4. Step 4: Simplify right side
    6,855.60x = 42,067,332.72
  5. Step 5: Solve for x
    x = 42,067,332.72/6,855.60
  6. Step 6: Final answer
    x = 6,136.20

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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.