Home / 6,421.74-9,623.14-2,912.82

Finding the Fourth Proportional to 6,421.74, 9,623.14 and 2,912.82

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Solution

The fourth proportional to 6,421.74, 9,623.14 and 2,912.82 is: 4,364.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.74 : 9,623.14 = 2,912.82 : x
  2. Step 2: Convert to fraction form
    6,421.74/9,623.14 = 2,912.82/x
  3. Step 3: Cross multiply
    6,421.74x = 9,623.14 × 2,912.82
  4. Step 4: Simplify right side
    6,421.74x = 28,030,467.37
  5. Step 5: Solve for x
    x = 28,030,467.37/6,421.74
  6. Step 6: Final answer
    x = 4,364.93

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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.