Home / 4,426.58-6,639.64-1,139.84

Finding the Fourth Proportional to 4,426.58, 6,639.64 and 1,139.84

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Solution

The fourth proportional to 4,426.58, 6,639.64 and 1,139.84 is: 1,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,426.58 : 6,639.64 = 1,139.84 : x
  2. Step 2: Convert to fraction form
    4,426.58/6,639.64 = 1,139.84/x
  3. Step 3: Cross multiply
    4,426.58x = 6,639.64 × 1,139.84
  4. Step 4: Simplify right side
    4,426.58x = 7,568,127.26
  5. Step 5: Solve for x
    x = 7,568,127.26/4,426.58
  6. Step 6: Final answer
    x = 1,709.70

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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.