Home / 7,173.87-9,901.17-4,190.06

Finding the Fourth Proportional to 7,173.87, 9,901.17 and 4,190.06

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Solution

The fourth proportional to 7,173.87, 9,901.17 and 4,190.06 is: 5,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.87 : 9,901.17 = 4,190.06 : x
  2. Step 2: Convert to fraction form
    7,173.87/9,901.17 = 4,190.06/x
  3. Step 3: Cross multiply
    7,173.87x = 9,901.17 × 4,190.06
  4. Step 4: Simplify right side
    7,173.87x = 41,486,446.86
  5. Step 5: Solve for x
    x = 41,486,446.86/7,173.87
  6. Step 6: Final answer
    x = 5,782.99

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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.