Home / 5,049.21-7,570.57-3,315.81

Finding the Fourth Proportional to 5,049.21, 7,570.57 and 3,315.81

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Solution

The fourth proportional to 5,049.21, 7,570.57 and 3,315.81 is: 4,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.21 : 7,570.57 = 3,315.81 : x
  2. Step 2: Convert to fraction form
    5,049.21/7,570.57 = 3,315.81/x
  3. Step 3: Cross multiply
    5,049.21x = 7,570.57 × 3,315.81
  4. Step 4: Simplify right side
    5,049.21x = 25,102,571.71
  5. Step 5: Solve for x
    x = 25,102,571.71/5,049.21
  6. Step 6: Final answer
    x = 4,971.58

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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.