Home / 4,842.64-7,263.79-1,379.89

Finding the Fourth Proportional to 4,842.64, 7,263.79 and 1,379.89

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Solution

The fourth proportional to 4,842.64, 7,263.79 and 1,379.89 is: 2,069.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.64 : 7,263.79 = 1,379.89 : x
  2. Step 2: Convert to fraction form
    4,842.64/7,263.79 = 1,379.89/x
  3. Step 3: Cross multiply
    4,842.64x = 7,263.79 × 1,379.89
  4. Step 4: Simplify right side
    4,842.64x = 10,023,231.18
  5. Step 5: Solve for x
    x = 10,023,231.18/4,842.64
  6. Step 6: Final answer
    x = 2,069.79

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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.