Home / 4,842.78-7,263.39-1,379.22

Finding the Fourth Proportional to 4,842.78, 7,263.39 and 1,379.22

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Solution

The fourth proportional to 4,842.78, 7,263.39 and 1,379.22 is: 2,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.78 : 7,263.39 = 1,379.22 : x
  2. Step 2: Convert to fraction form
    4,842.78/7,263.39 = 1,379.22/x
  3. Step 3: Cross multiply
    4,842.78x = 7,263.39 × 1,379.22
  4. Step 4: Simplify right side
    4,842.78x = 10,017,812.76
  5. Step 5: Solve for x
    x = 10,017,812.76/4,842.78
  6. Step 6: Final answer
    x = 2,068.61

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1.5x scale

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.