Home / 3,869.10-5,804.46-1,272.24

Finding the Fourth Proportional to 3,869.10, 5,804.46 and 1,272.24

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Solution

The fourth proportional to 3,869.10, 5,804.46 and 1,272.24 is: 1,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.10 : 5,804.46 = 1,272.24 : x
  2. Step 2: Convert to fraction form
    3,869.10/5,804.46 = 1,272.24/x
  3. Step 3: Cross multiply
    3,869.10x = 5,804.46 × 1,272.24
  4. Step 4: Simplify right side
    3,869.10x = 7,384,666.19
  5. Step 5: Solve for x
    x = 7,384,666.19/3,869.10
  6. Step 6: Final answer
    x = 1,908.63

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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.