Home / 3,927.88-5,892.72-1,330.80

Finding the Fourth Proportional to 3,927.88, 5,892.72 and 1,330.80

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Solution

The fourth proportional to 3,927.88, 5,892.72 and 1,330.80 is: 1,996.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.88 : 5,892.72 = 1,330.80 : x
  2. Step 2: Convert to fraction form
    3,927.88/5,892.72 = 1,330.80/x
  3. Step 3: Cross multiply
    3,927.88x = 5,892.72 × 1,330.80
  4. Step 4: Simplify right side
    3,927.88x = 7,842,031.78
  5. Step 5: Solve for x
    x = 7,842,031.78/3,927.88
  6. Step 6: Final answer
    x = 1,996.50

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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.