Home / 3,898.61-5,378.55-2,481.93

Finding the Fourth Proportional to 3,898.61, 5,378.55 and 2,481.93

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Solution

The fourth proportional to 3,898.61, 5,378.55 and 2,481.93 is: 3,424.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.61 : 5,378.55 = 2,481.93 : x
  2. Step 2: Convert to fraction form
    3,898.61/5,378.55 = 2,481.93/x
  3. Step 3: Cross multiply
    3,898.61x = 5,378.55 × 2,481.93
  4. Step 4: Simplify right side
    3,898.61x = 13,349,172.19
  5. Step 5: Solve for x
    x = 13,349,172.19/3,898.61
  6. Step 6: Final answer
    x = 3,424.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.