Home / 4,211.49-6,317.25-1,289.79

Finding the Fourth Proportional to 4,211.49, 6,317.25 and 1,289.79

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Solution

The fourth proportional to 4,211.49, 6,317.25 and 1,289.79 is: 1,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.49 : 6,317.25 = 1,289.79 : x
  2. Step 2: Convert to fraction form
    4,211.49/6,317.25 = 1,289.79/x
  3. Step 3: Cross multiply
    4,211.49x = 6,317.25 × 1,289.79
  4. Step 4: Simplify right side
    4,211.49x = 8,147,925.88
  5. Step 5: Solve for x
    x = 8,147,925.88/4,211.49
  6. Step 6: Final answer
    x = 1,934.69

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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.