Home / 3,786.12-5,678.50-1,152.98

Finding the Fourth Proportional to 3,786.12, 5,678.50 and 1,152.98

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Solution

The fourth proportional to 3,786.12, 5,678.50 and 1,152.98 is: 1,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.12 : 5,678.50 = 1,152.98 : x
  2. Step 2: Convert to fraction form
    3,786.12/5,678.50 = 1,152.98/x
  3. Step 3: Cross multiply
    3,786.12x = 5,678.50 × 1,152.98
  4. Step 4: Simplify right side
    3,786.12x = 6,547,196.93
  5. Step 5: Solve for x
    x = 6,547,196.93/3,786.12
  6. Step 6: Final answer
    x = 1,729.26

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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.