Home / 2,765.13-4,148.36-790.79

Finding the Fourth Proportional to 2,765.13, 4,148.36 and 790.79

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Solution

The fourth proportional to 2,765.13, 4,148.36 and 790.79 is: 1,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.13 : 4,148.36 = 790.79 : x
  2. Step 2: Convert to fraction form
    2,765.13/4,148.36 = 790.79/x
  3. Step 3: Cross multiply
    2,765.13x = 4,148.36 × 790.79
  4. Step 4: Simplify right side
    2,765.13x = 3,280,477.65
  5. Step 5: Solve for x
    x = 3,280,477.65/2,765.13
  6. Step 6: Final answer
    x = 1,186.37

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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.