Home / 3,513.76-4,849.21-2,021.65

Finding the Fourth Proportional to 3,513.76, 4,849.21 and 2,021.65

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Solution

The fourth proportional to 3,513.76, 4,849.21 and 2,021.65 is: 2,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.76 : 4,849.21 = 2,021.65 : x
  2. Step 2: Convert to fraction form
    3,513.76/4,849.21 = 2,021.65/x
  3. Step 3: Cross multiply
    3,513.76x = 4,849.21 × 2,021.65
  4. Step 4: Simplify right side
    3,513.76x = 9,803,395.80
  5. Step 5: Solve for x
    x = 9,803,395.80/3,513.76
  6. Step 6: Final answer
    x = 2,790.00

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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.