Home / 4,325.81-6,489.80-1,247.81

Finding the Fourth Proportional to 4,325.81, 6,489.80 and 1,247.81

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Solution

The fourth proportional to 4,325.81, 6,489.80 and 1,247.81 is: 1,872.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,325.81 : 6,489.80 = 1,247.81 : x
  2. Step 2: Convert to fraction form
    4,325.81/6,489.80 = 1,247.81/x
  3. Step 3: Cross multiply
    4,325.81x = 6,489.80 × 1,247.81
  4. Step 4: Simplify right side
    4,325.81x = 8,098,056.68
  5. Step 5: Solve for x
    x = 8,098,056.68/4,325.81
  6. Step 6: Final answer
    x = 1,872.03

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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.