Home / 3,315.96-4,973.60-850.70

Finding the Fourth Proportional to 3,315.96, 4,973.60 and 850.70

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Solution

The fourth proportional to 3,315.96, 4,973.60 and 850.70 is: 1,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.96 : 4,973.60 = 850.70 : x
  2. Step 2: Convert to fraction form
    3,315.96/4,973.60 = 850.70/x
  3. Step 3: Cross multiply
    3,315.96x = 4,973.60 × 850.70
  4. Step 4: Simplify right side
    3,315.96x = 4,231,041.52
  5. Step 5: Solve for x
    x = 4,231,041.52/3,315.96
  6. Step 6: Final answer
    x = 1,275.96

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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.