Home / 3,472.07-4,791.20-2,145.79

Finding the Fourth Proportional to 3,472.07, 4,791.20 and 2,145.79

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Solution

The fourth proportional to 3,472.07, 4,791.20 and 2,145.79 is: 2,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.07 : 4,791.20 = 2,145.79 : x
  2. Step 2: Convert to fraction form
    3,472.07/4,791.20 = 2,145.79/x
  3. Step 3: Cross multiply
    3,472.07x = 4,791.20 × 2,145.79
  4. Step 4: Simplify right side
    3,472.07x = 10,280,904.31
  5. Step 5: Solve for x
    x = 10,280,904.31/3,472.07
  6. Step 6: Final answer
    x = 2,961.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.