Home / 3,869.36-5,804.68-1,271.69

Finding the Fourth Proportional to 3,869.36, 5,804.68 and 1,271.69

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Solution

The fourth proportional to 3,869.36, 5,804.68 and 1,271.69 is: 1,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.36 : 5,804.68 = 1,271.69 : x
  2. Step 2: Convert to fraction form
    3,869.36/5,804.68 = 1,271.69/x
  3. Step 3: Cross multiply
    3,869.36x = 5,804.68 × 1,271.69
  4. Step 4: Simplify right side
    3,869.36x = 7,381,753.51
  5. Step 5: Solve for x
    x = 7,381,753.51/3,869.36
  6. Step 6: Final answer
    x = 1,907.75

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1.5x scale

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.