Home / 4,090.90-6,136.55-2,146.90

Finding the Fourth Proportional to 4,090.90, 6,136.55 and 2,146.90

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Solution

The fourth proportional to 4,090.90, 6,136.55 and 2,146.90 is: 3,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.90 : 6,136.55 = 2,146.90 : x
  2. Step 2: Convert to fraction form
    4,090.90/6,136.55 = 2,146.90/x
  3. Step 3: Cross multiply
    4,090.90x = 6,136.55 × 2,146.90
  4. Step 4: Simplify right side
    4,090.90x = 13,174,559.20
  5. Step 5: Solve for x
    x = 13,174,559.20/4,090.90
  6. Step 6: Final answer
    x = 3,220.45

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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.