Home / 4,684.23-7,028.91-1,911.20

Finding the Fourth Proportional to 4,684.23, 7,028.91 and 1,911.20

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Solution

The fourth proportional to 4,684.23, 7,028.91 and 1,911.20 is: 2,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,684.23 : 7,028.91 = 1,911.20 : x
  2. Step 2: Convert to fraction form
    4,684.23/7,028.91 = 1,911.20/x
  3. Step 3: Cross multiply
    4,684.23x = 7,028.91 × 1,911.20
  4. Step 4: Simplify right side
    4,684.23x = 13,433,617.65
  5. Step 5: Solve for x
    x = 13,433,617.65/4,684.23
  6. Step 6: Final answer
    x = 2,867.84

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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.