Home / 6,288.42-9,434.64-1,905.90

Finding the Fourth Proportional to 6,288.42, 9,434.64 and 1,905.90

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Solution

The fourth proportional to 6,288.42, 9,434.64 and 1,905.90 is: 2,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.42 : 9,434.64 = 1,905.90 : x
  2. Step 2: Convert to fraction form
    6,288.42/9,434.64 = 1,905.90/x
  3. Step 3: Cross multiply
    6,288.42x = 9,434.64 × 1,905.90
  4. Step 4: Simplify right side
    6,288.42x = 17,981,480.38
  5. Step 5: Solve for x
    x = 17,981,480.38/6,288.42
  6. Step 6: Final answer
    x = 2,859.46

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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.