Home / 5,173.74-7,142.67-3,960.14

Finding the Fourth Proportional to 5,173.74, 7,142.67 and 3,960.14

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Solution

The fourth proportional to 5,173.74, 7,142.67 and 3,960.14 is: 5,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.74 : 7,142.67 = 3,960.14 : x
  2. Step 2: Convert to fraction form
    5,173.74/7,142.67 = 3,960.14/x
  3. Step 3: Cross multiply
    5,173.74x = 7,142.67 × 3,960.14
  4. Step 4: Simplify right side
    5,173.74x = 28,285,937.46
  5. Step 5: Solve for x
    x = 28,285,937.46/5,173.74
  6. Step 6: Final answer
    x = 5,467.21

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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.