Home / 4,286.75-6,430.49-1,208.75

Finding the Fourth Proportional to 4,286.75, 6,430.49 and 1,208.75

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Solution

The fourth proportional to 4,286.75, 6,430.49 and 1,208.75 is: 1,813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.75 : 6,430.49 = 1,208.75 : x
  2. Step 2: Convert to fraction form
    4,286.75/6,430.49 = 1,208.75/x
  3. Step 3: Cross multiply
    4,286.75x = 6,430.49 × 1,208.75
  4. Step 4: Simplify right side
    4,286.75x = 7,772,848.74
  5. Step 5: Solve for x
    x = 7,772,848.74/4,286.75
  6. Step 6: Final answer
    x = 1,813.23

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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.