Home / 3,890.10-5,821.47-2,429.94

Finding the Fourth Proportional to 3,890.10, 5,821.47 and 2,429.94

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Solution

The fourth proportional to 3,890.10, 5,821.47 and 2,429.94 is: 3,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.10 : 5,821.47 = 2,429.94 : x
  2. Step 2: Convert to fraction form
    3,890.10/5,821.47 = 2,429.94/x
  3. Step 3: Cross multiply
    3,890.10x = 5,821.47 × 2,429.94
  4. Step 4: Simplify right side
    3,890.10x = 14,145,822.81
  5. Step 5: Solve for x
    x = 14,145,822.81/3,890.10
  6. Step 6: Final answer
    x = 3,636.36

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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.