Home / 6,813.99-10,222.13-2,653.90

Finding the Fourth Proportional to 6,813.99, 10,222.13 and 2,653.90

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Solution

The fourth proportional to 6,813.99, 10,222.13 and 2,653.90 is: 3,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.99 : 10,222.13 = 2,653.90 : x
  2. Step 2: Convert to fraction form
    6,813.99/10,222.13 = 2,653.90/x
  3. Step 3: Cross multiply
    6,813.99x = 10,222.13 × 2,653.90
  4. Step 4: Simplify right side
    6,813.99x = 27,128,491.89
  5. Step 5: Solve for x
    x = 27,128,491.89/6,813.99
  6. Step 6: Final answer
    x = 3,981.29

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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.