Home / 4,780.26-7,164.36-2,005.50

Finding the Fourth Proportional to 4,780.26, 7,164.36 and 2,005.50

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Solution

The fourth proportional to 4,780.26, 7,164.36 and 2,005.50 is: 3,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.26 : 7,164.36 = 2,005.50 : x
  2. Step 2: Convert to fraction form
    4,780.26/7,164.36 = 2,005.50/x
  3. Step 3: Cross multiply
    4,780.26x = 7,164.36 × 2,005.50
  4. Step 4: Simplify right side
    4,780.26x = 14,368,123.98
  5. Step 5: Solve for x
    x = 14,368,123.98/4,780.26
  6. Step 6: Final answer
    x = 3,005.72

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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.