Home / 4,654.80-6,983.92-2,157.20

Finding the Fourth Proportional to 4,654.80, 6,983.92 and 2,157.20

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Solution

The fourth proportional to 4,654.80, 6,983.92 and 2,157.20 is: 3,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,654.80 : 6,983.92 = 2,157.20 : x
  2. Step 2: Convert to fraction form
    4,654.80/6,983.92 = 2,157.20/x
  3. Step 3: Cross multiply
    4,654.80x = 6,983.92 × 2,157.20
  4. Step 4: Simplify right side
    4,654.80x = 15,065,706.19
  5. Step 5: Solve for x
    x = 15,065,706.19/4,654.80
  6. Step 6: Final answer
    x = 3,236.60

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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.