Home / 4,838.20-7,259.76-1,918.55

Finding the Fourth Proportional to 4,838.20, 7,259.76 and 1,918.55

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Solution

The fourth proportional to 4,838.20, 7,259.76 and 1,918.55 is: 2,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.20 : 7,259.76 = 1,918.55 : x
  2. Step 2: Convert to fraction form
    4,838.20/7,259.76 = 1,918.55/x
  3. Step 3: Cross multiply
    4,838.20x = 7,259.76 × 1,918.55
  4. Step 4: Simplify right side
    4,838.20x = 13,928,230.70
  5. Step 5: Solve for x
    x = 13,928,230.70/4,838.20
  6. Step 6: Final answer
    x = 2,878.81

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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.