Home / 4,090.35-6,135.53-2,142.30

Finding the Fourth Proportional to 4,090.35, 6,135.53 and 2,142.30

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Solution

The fourth proportional to 4,090.35, 6,135.53 and 2,142.30 is: 3,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.35 : 6,135.53 = 2,142.30 : x
  2. Step 2: Convert to fraction form
    4,090.35/6,135.53 = 2,142.30/x
  3. Step 3: Cross multiply
    4,090.35x = 6,135.53 × 2,142.30
  4. Step 4: Simplify right side
    4,090.35x = 13,144,135.21
  5. Step 5: Solve for x
    x = 13,144,135.21/4,090.35
  6. Step 6: Final answer
    x = 3,213.45

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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.