Home / 5,021.50-6,929.67-2,813.50

Finding the Fourth Proportional to 5,021.50, 6,929.67 and 2,813.50

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Solution

The fourth proportional to 5,021.50, 6,929.67 and 2,813.50 is: 3,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.50 : 6,929.67 = 2,813.50 : x
  2. Step 2: Convert to fraction form
    5,021.50/6,929.67 = 2,813.50/x
  3. Step 3: Cross multiply
    5,021.50x = 6,929.67 × 2,813.50
  4. Step 4: Simplify right side
    5,021.50x = 19,496,626.55
  5. Step 5: Solve for x
    x = 19,496,626.55/5,021.50
  6. Step 6: Final answer
    x = 3,882.63

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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.