Home / 7,129.64-10,693.26-1,934.36

Finding the Fourth Proportional to 7,129.64, 10,693.26 and 1,934.36

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Solution

The fourth proportional to 7,129.64, 10,693.26 and 1,934.36 is: 2,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.64 : 10,693.26 = 1,934.36 : x
  2. Step 2: Convert to fraction form
    7,129.64/10,693.26 = 1,934.36/x
  3. Step 3: Cross multiply
    7,129.64x = 10,693.26 × 1,934.36
  4. Step 4: Simplify right side
    7,129.64x = 20,684,614.41
  5. Step 5: Solve for x
    x = 20,684,614.41/7,129.64
  6. Step 6: Final answer
    x = 2,901.21

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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.