Home / 5,174.70-7,141.18-2,816.98

Finding the Fourth Proportional to 5,174.70, 7,141.18 and 2,816.98

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Solution

The fourth proportional to 5,174.70, 7,141.18 and 2,816.98 is: 3,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.70 : 7,141.18 = 2,816.98 : x
  2. Step 2: Convert to fraction form
    5,174.70/7,141.18 = 2,816.98/x
  3. Step 3: Cross multiply
    5,174.70x = 7,141.18 × 2,816.98
  4. Step 4: Simplify right side
    5,174.70x = 20,116,561.24
  5. Step 5: Solve for x
    x = 20,116,561.24/5,174.70
  6. Step 6: Final answer
    x = 3,887.48

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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.