Home / 5,780.63-8,665.68-2,081.99

Finding the Fourth Proportional to 5,780.63, 8,665.68 and 2,081.99

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Solution

The fourth proportional to 5,780.63, 8,665.68 and 2,081.99 is: 3,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.63 : 8,665.68 = 2,081.99 : x
  2. Step 2: Convert to fraction form
    5,780.63/8,665.68 = 2,081.99/x
  3. Step 3: Cross multiply
    5,780.63x = 8,665.68 × 2,081.99
  4. Step 4: Simplify right side
    5,780.63x = 18,041,859.10
  5. Step 5: Solve for x
    x = 18,041,859.10/5,780.63
  6. Step 6: Final answer
    x = 3,121.09

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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.