Home / 3,133.91-4,698.09-1,187.48

Finding the Fourth Proportional to 3,133.91, 4,698.09 and 1,187.48

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Solution

The fourth proportional to 3,133.91, 4,698.09 and 1,187.48 is: 1,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.91 : 4,698.09 = 1,187.48 : x
  2. Step 2: Convert to fraction form
    3,133.91/4,698.09 = 1,187.48/x
  3. Step 3: Cross multiply
    3,133.91x = 4,698.09 × 1,187.48
  4. Step 4: Simplify right side
    3,133.91x = 5,578,864.42
  5. Step 5: Solve for x
    x = 5,578,864.42/3,133.91
  6. Step 6: Final answer
    x = 1,780.16

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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.