Home / 7,133.64-10,701-1,939.56

Finding the Fourth Proportional to 7,133.64, 10,701 and 1,939.56

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Solution

The fourth proportional to 7,133.64, 10,701 and 1,939.56 is: 2,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.64 : 10,701 = 1,939.56 : x
  2. Step 2: Convert to fraction form
    7,133.64/10,701 = 1,939.56/x
  3. Step 3: Cross multiply
    7,133.64x = 10,701 × 1,939.56
  4. Step 4: Simplify right side
    7,133.64x = 20,755,231.56
  5. Step 5: Solve for x
    x = 20,755,231.56/7,133.64
  6. Step 6: Final answer
    x = 2,909.49

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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.