Home / 5,130.74-7,080.50-2,892.73

Finding the Fourth Proportional to 5,130.74, 7,080.50 and 2,892.73

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Solution

The fourth proportional to 5,130.74, 7,080.50 and 2,892.73 is: 3,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.74 : 7,080.50 = 2,892.73 : x
  2. Step 2: Convert to fraction form
    5,130.74/7,080.50 = 2,892.73/x
  3. Step 3: Cross multiply
    5,130.74x = 7,080.50 × 2,892.73
  4. Step 4: Simplify right side
    5,130.74x = 20,481,964.30
  5. Step 5: Solve for x
    x = 20,481,964.30/5,130.74
  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.