Home / 3,106.73-4,287.39-1,709.48

Finding the Fourth Proportional to 3,106.73, 4,287.39 and 1,709.48

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Solution

The fourth proportional to 3,106.73, 4,287.39 and 1,709.48 is: 2,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.73 : 4,287.39 = 1,709.48 : x
  2. Step 2: Convert to fraction form
    3,106.73/4,287.39 = 1,709.48/x
  3. Step 3: Cross multiply
    3,106.73x = 4,287.39 × 1,709.48
  4. Step 4: Simplify right side
    3,106.73x = 7,329,207.46
  5. Step 5: Solve for x
    x = 7,329,207.46/3,106.73
  6. Step 6: Final answer
    x = 2,359.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.