Home / 3,416.12-5,130.70-1,958.12

Finding the Fourth Proportional to 3,416.12, 5,130.70 and 1,958.12

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Solution

The fourth proportional to 3,416.12, 5,130.70 and 1,958.12 is: 2,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.12 : 5,130.70 = 1,958.12 : x
  2. Step 2: Convert to fraction form
    3,416.12/5,130.70 = 1,958.12/x
  3. Step 3: Cross multiply
    3,416.12x = 5,130.70 × 1,958.12
  4. Step 4: Simplify right side
    3,416.12x = 10,046,526.28
  5. Step 5: Solve for x
    x = 10,046,526.28/3,416.12
  6. Step 6: Final answer
    x = 2,940.92

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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.