Home / 6,872.81-9,484.50-3,729.02

Finding the Fourth Proportional to 6,872.81, 9,484.50 and 3,729.02

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Solution

The fourth proportional to 6,872.81, 9,484.50 and 3,729.02 is: 5,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.81 : 9,484.50 = 3,729.02 : x
  2. Step 2: Convert to fraction form
    6,872.81/9,484.50 = 3,729.02/x
  3. Step 3: Cross multiply
    6,872.81x = 9,484.50 × 3,729.02
  4. Step 4: Simplify right side
    6,872.81x = 35,367,890.19
  5. Step 5: Solve for x
    x = 35,367,890.19/6,872.81
  6. Step 6: Final answer
    x = 5,146.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.