Home / 3,869.48-5,803.50-1,272.08

Finding the Fourth Proportional to 3,869.48, 5,803.50 and 1,272.08

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Solution

The fourth proportional to 3,869.48, 5,803.50 and 1,272.08 is: 1,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.48 : 5,803.50 = 1,272.08 : x
  2. Step 2: Convert to fraction form
    3,869.48/5,803.50 = 1,272.08/x
  3. Step 3: Cross multiply
    3,869.48x = 5,803.50 × 1,272.08
  4. Step 4: Simplify right side
    3,869.48x = 7,382,516.28
  5. Step 5: Solve for x
    x = 7,382,516.28/3,869.48
  6. Step 6: Final answer
    x = 1,907.88

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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.