Home / 6,421.71-9,631.81-1,741.43

Finding the Fourth Proportional to 6,421.71, 9,631.81 and 1,741.43

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Solution

The fourth proportional to 6,421.71, 9,631.81 and 1,741.43 is: 2,611.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.71 : 9,631.81 = 1,741.43 : x
  2. Step 2: Convert to fraction form
    6,421.71/9,631.81 = 1,741.43/x
  3. Step 3: Cross multiply
    6,421.71x = 9,631.81 × 1,741.43
  4. Step 4: Simplify right side
    6,421.71x = 16,773,122.89
  5. Step 5: Solve for x
    x = 16,773,122.89/6,421.71
  6. Step 6: Final answer
    x = 2,611.94

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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.