Home / 3,257.16-4,886-1,178.40

Finding the Fourth Proportional to 3,257.16, 4,886 and 1,178.40

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Solution

The fourth proportional to 3,257.16, 4,886 and 1,178.40 is: 1,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,257.16 : 4,886 = 1,178.40 : x
  2. Step 2: Convert to fraction form
    3,257.16/4,886 = 1,178.40/x
  3. Step 3: Cross multiply
    3,257.16x = 4,886 × 1,178.40
  4. Step 4: Simplify right side
    3,257.16x = 5,757,662.40
  5. Step 5: Solve for x
    x = 5,757,662.40/3,257.16
  6. Step 6: Final answer
    x = 1,767.69

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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.