Home / 4,780.58-7,164.75-3,856.57

Finding the Fourth Proportional to 4,780.58, 7,164.75 and 3,856.57

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Solution

The fourth proportional to 4,780.58, 7,164.75 and 3,856.57 is: 5,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.58 : 7,164.75 = 3,856.57 : x
  2. Step 2: Convert to fraction form
    4,780.58/7,164.75 = 3,856.57/x
  3. Step 3: Cross multiply
    4,780.58x = 7,164.75 × 3,856.57
  4. Step 4: Simplify right side
    4,780.58x = 27,631,356.46
  5. Step 5: Solve for x
    x = 27,631,356.46/4,780.58
  6. Step 6: Final answer
    x = 5,779.92

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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.