Home / 3,315.84-4,973.38-850.67

Finding the Fourth Proportional to 3,315.84, 4,973.38 and 850.67

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Solution

The fourth proportional to 3,315.84, 4,973.38 and 850.67 is: 1,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.84 : 4,973.38 = 850.67 : x
  2. Step 2: Convert to fraction form
    3,315.84/4,973.38 = 850.67/x
  3. Step 3: Cross multiply
    3,315.84x = 4,973.38 × 850.67
  4. Step 4: Simplify right side
    3,315.84x = 4,230,715.47
  5. Step 5: Solve for x
    x = 4,230,715.47/3,315.84
  6. Step 6: Final answer
    x = 1,275.91

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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.