Home / 4,071.39-6,109.31-1,880.07

Finding the Fourth Proportional to 4,071.39, 6,109.31 and 1,880.07

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Solution

The fourth proportional to 4,071.39, 6,109.31 and 1,880.07 is: 2,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.39 : 6,109.31 = 1,880.07 : x
  2. Step 2: Convert to fraction form
    4,071.39/6,109.31 = 1,880.07/x
  3. Step 3: Cross multiply
    4,071.39x = 6,109.31 × 1,880.07
  4. Step 4: Simplify right side
    4,071.39x = 11,485,930.45
  5. Step 5: Solve for x
    x = 11,485,930.45/4,071.39
  6. Step 6: Final answer
    x = 2,821.13

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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.