Home / 5,021.75-6,930.02-2,813.75

Finding the Fourth Proportional to 5,021.75, 6,930.02 and 2,813.75

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Solution

The fourth proportional to 5,021.75, 6,930.02 and 2,813.75 is: 3,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.75 : 6,930.02 = 2,813.75 : x
  2. Step 2: Convert to fraction form
    5,021.75/6,930.02 = 2,813.75/x
  3. Step 3: Cross multiply
    5,021.75x = 6,930.02 × 2,813.75
  4. Step 4: Simplify right side
    5,021.75x = 19,499,343.78
  5. Step 5: Solve for x
    x = 19,499,343.78/5,021.75
  6. Step 6: Final answer
    x = 3,882.98

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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.