Home / 3,721.72-5,130.84-3,606.70

Finding the Fourth Proportional to 3,721.72, 5,130.84 and 3,606.70

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Solution

The fourth proportional to 3,721.72, 5,130.84 and 3,606.70 is: 4,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.72 : 5,130.84 = 3,606.70 : x
  2. Step 2: Convert to fraction form
    3,721.72/5,130.84 = 3,606.70/x
  3. Step 3: Cross multiply
    3,721.72x = 5,130.84 × 3,606.70
  4. Step 4: Simplify right side
    3,721.72x = 18,505,400.63
  5. Step 5: Solve for x
    x = 18,505,400.63/3,721.72
  6. Step 6: Final answer
    x = 4,972.27

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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.