Home / 4,211.74-6,317.31-1,289.89

Finding the Fourth Proportional to 4,211.74, 6,317.31 and 1,289.89

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Solution

The fourth proportional to 4,211.74, 6,317.31 and 1,289.89 is: 1,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.74 : 6,317.31 = 1,289.89 : x
  2. Step 2: Convert to fraction form
    4,211.74/6,317.31 = 1,289.89/x
  3. Step 3: Cross multiply
    4,211.74x = 6,317.31 × 1,289.89
  4. Step 4: Simplify right side
    4,211.74x = 8,148,635.00
  5. Step 5: Solve for x
    x = 8,148,635.00/4,211.74
  6. Step 6: Final answer
    x = 1,934.74

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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.