Home / 3,378.11-5,066.55-1,430.46

Finding the Fourth Proportional to 3,378.11, 5,066.55 and 1,430.46

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Solution

The fourth proportional to 3,378.11, 5,066.55 and 1,430.46 is: 2,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.11 : 5,066.55 = 1,430.46 : x
  2. Step 2: Convert to fraction form
    3,378.11/5,066.55 = 1,430.46/x
  3. Step 3: Cross multiply
    3,378.11x = 5,066.55 × 1,430.46
  4. Step 4: Simplify right side
    3,378.11x = 7,247,497.11
  5. Step 5: Solve for x
    x = 7,247,497.11/3,378.11
  6. Step 6: Final answer
    x = 2,145.43

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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.