Home / 5,782.68-8,670.78-2,315.88

Finding the Fourth Proportional to 5,782.68, 8,670.78 and 2,315.88

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Solution

The fourth proportional to 5,782.68, 8,670.78 and 2,315.88 is: 3,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,782.68 : 8,670.78 = 2,315.88 : x
  2. Step 2: Convert to fraction form
    5,782.68/8,670.78 = 2,315.88/x
  3. Step 3: Cross multiply
    5,782.68x = 8,670.78 × 2,315.88
  4. Step 4: Simplify right side
    5,782.68x = 20,080,485.99
  5. Step 5: Solve for x
    x = 20,080,485.99/5,782.68
  6. Step 6: Final answer
    x = 3,472.52

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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.