Home / 3,106.85-4,287.44-1,709.60

Finding the Fourth Proportional to 3,106.85, 4,287.44 and 1,709.60

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Solution

The fourth proportional to 3,106.85, 4,287.44 and 1,709.60 is: 2,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.85 : 4,287.44 = 1,709.60 : x
  2. Step 2: Convert to fraction form
    3,106.85/4,287.44 = 1,709.60/x
  3. Step 3: Cross multiply
    3,106.85x = 4,287.44 × 1,709.60
  4. Step 4: Simplify right side
    3,106.85x = 7,329,800.98
  5. Step 5: Solve for x
    x = 7,329,800.98/3,106.85
  6. Step 6: Final answer
    x = 2,359.24

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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.