Home / 5,440.23-7,507.41-3,171.99

Finding the Fourth Proportional to 5,440.23, 7,507.41 and 3,171.99

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Solution

The fourth proportional to 5,440.23, 7,507.41 and 3,171.99 is: 4,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.23 : 7,507.41 = 3,171.99 : x
  2. Step 2: Convert to fraction form
    5,440.23/7,507.41 = 3,171.99/x
  3. Step 3: Cross multiply
    5,440.23x = 7,507.41 × 3,171.99
  4. Step 4: Simplify right side
    5,440.23x = 23,813,429.45
  5. Step 5: Solve for x
    x = 23,813,429.45/5,440.23
  6. Step 6: Final answer
    x = 4,377.28

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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.