Home / 3,378.80-5,066.92-1,038.10

Finding the Fourth Proportional to 3,378.80, 5,066.92 and 1,038.10

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Solution

The fourth proportional to 3,378.80, 5,066.92 and 1,038.10 is: 1,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.80 : 5,066.92 = 1,038.10 : x
  2. Step 2: Convert to fraction form
    3,378.80/5,066.92 = 1,038.10/x
  3. Step 3: Cross multiply
    3,378.80x = 5,066.92 × 1,038.10
  4. Step 4: Simplify right side
    3,378.80x = 5,259,969.65
  5. Step 5: Solve for x
    x = 5,259,969.65/3,378.80
  6. Step 6: Final answer
    x = 1,556.76

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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.