Home / 3,370.61-5,055.51-1,422.56

Finding the Fourth Proportional to 3,370.61, 5,055.51 and 1,422.56

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Solution

The fourth proportional to 3,370.61, 5,055.51 and 1,422.56 is: 2,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.61 : 5,055.51 = 1,422.56 : x
  2. Step 2: Convert to fraction form
    3,370.61/5,055.51 = 1,422.56/x
  3. Step 3: Cross multiply
    3,370.61x = 5,055.51 × 1,422.56
  4. Step 4: Simplify right side
    3,370.61x = 7,191,784.28
  5. Step 5: Solve for x
    x = 7,191,784.28/3,370.61
  6. Step 6: Final answer
    x = 2,133.67

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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.