Home / 2,790.67-4,186.03-1,146.07

Finding the Fourth Proportional to 2,790.67, 4,186.03 and 1,146.07

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Solution

The fourth proportional to 2,790.67, 4,186.03 and 1,146.07 is: 1,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.67 : 4,186.03 = 1,146.07 : x
  2. Step 2: Convert to fraction form
    2,790.67/4,186.03 = 1,146.07/x
  3. Step 3: Cross multiply
    2,790.67x = 4,186.03 × 1,146.07
  4. Step 4: Simplify right side
    2,790.67x = 4,797,483.40
  5. Step 5: Solve for x
    x = 4,797,483.40/2,790.67
  6. Step 6: Final answer
    x = 1,719.12

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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.