Home / 5,130.24-7,080.17-2,892.58

Finding the Fourth Proportional to 5,130.24, 7,080.17 and 2,892.58

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Solution

The fourth proportional to 5,130.24, 7,080.17 and 2,892.58 is: 3,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.24 : 7,080.17 = 2,892.58 : x
  2. Step 2: Convert to fraction form
    5,130.24/7,080.17 = 2,892.58/x
  3. Step 3: Cross multiply
    5,130.24x = 7,080.17 × 2,892.58
  4. Step 4: Simplify right side
    5,130.24x = 20,479,958.14
  5. Step 5: Solve for x
    x = 20,479,958.14/5,130.24
  6. Step 6: Final answer
    x = 3,992.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.