Home / 2,412.75-3,617.97-1,178.72

Finding the Fourth Proportional to 2,412.75, 3,617.97 and 1,178.72

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Solution

The fourth proportional to 2,412.75, 3,617.97 and 1,178.72 is: 1,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,412.75 : 3,617.97 = 1,178.72 : x
  2. Step 2: Convert to fraction form
    2,412.75/3,617.97 = 1,178.72/x
  3. Step 3: Cross multiply
    2,412.75x = 3,617.97 × 1,178.72
  4. Step 4: Simplify right side
    2,412.75x = 4,264,555.51
  5. Step 5: Solve for x
    x = 4,264,555.51/2,412.75
  6. Step 6: Final answer
    x = 1,767.51

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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.