Home / 4,725.12-7,084.20-2,876.64

Finding the Fourth Proportional to 4,725.12, 7,084.20 and 2,876.64

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Solution

The fourth proportional to 4,725.12, 7,084.20 and 2,876.64 is: 4,312.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.12 : 7,084.20 = 2,876.64 : x
  2. Step 2: Convert to fraction form
    4,725.12/7,084.20 = 2,876.64/x
  3. Step 3: Cross multiply
    4,725.12x = 7,084.20 × 2,876.64
  4. Step 4: Simplify right side
    4,725.12x = 20,378,693.09
  5. Step 5: Solve for x
    x = 20,378,693.09/4,725.12
  6. Step 6: Final answer
    x = 4,312.84

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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.