Home / 5,174.19-7,761.39-1,889.73

Finding the Fourth Proportional to 5,174.19, 7,761.39 and 1,889.73

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Solution

The fourth proportional to 5,174.19, 7,761.39 and 1,889.73 is: 2,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.19 : 7,761.39 = 1,889.73 : x
  2. Step 2: Convert to fraction form
    5,174.19/7,761.39 = 1,889.73/x
  3. Step 3: Cross multiply
    5,174.19x = 7,761.39 × 1,889.73
  4. Step 4: Simplify right side
    5,174.19x = 14,666,931.52
  5. Step 5: Solve for x
    x = 14,666,931.52/5,174.19
  6. Step 6: Final answer
    x = 2,834.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.