Home / 3,472.24-4,791.34-1,980.07

Finding the Fourth Proportional to 3,472.24, 4,791.34 and 1,980.07

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Solution

The fourth proportional to 3,472.24, 4,791.34 and 1,980.07 is: 2,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.24 : 4,791.34 = 1,980.07 : x
  2. Step 2: Convert to fraction form
    3,472.24/4,791.34 = 1,980.07/x
  3. Step 3: Cross multiply
    3,472.24x = 4,791.34 × 1,980.07
  4. Step 4: Simplify right side
    3,472.24x = 9,487,188.59
  5. Step 5: Solve for x
    x = 9,487,188.59/3,472.24
  6. Step 6: Final answer
    x = 2,732.30

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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.