Home / 2,390.21-3,583.15-850.85

Finding the Fourth Proportional to 2,390.21, 3,583.15 and 850.85

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Solution

The fourth proportional to 2,390.21, 3,583.15 and 850.85 is: 1,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.21 : 3,583.15 = 850.85 : x
  2. Step 2: Convert to fraction form
    2,390.21/3,583.15 = 850.85/x
  3. Step 3: Cross multiply
    2,390.21x = 3,583.15 × 850.85
  4. Step 4: Simplify right side
    2,390.21x = 3,048,703.13
  5. Step 5: Solve for x
    x = 3,048,703.13/2,390.21
  6. Step 6: Final answer
    x = 1,275.50

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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.