Home / 7,129.24-10,693.86-1,935.88

Finding the Fourth Proportional to 7,129.24, 10,693.86 and 1,935.88

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Solution

The fourth proportional to 7,129.24, 10,693.86 and 1,935.88 is: 2,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.24 : 10,693.86 = 1,935.88 : x
  2. Step 2: Convert to fraction form
    7,129.24/10,693.86 = 1,935.88/x
  3. Step 3: Cross multiply
    7,129.24x = 10,693.86 × 1,935.88
  4. Step 4: Simplify right side
    7,129.24x = 20,702,029.70
  5. Step 5: Solve for x
    x = 20,702,029.70/7,129.24
  6. Step 6: Final answer
    x = 2,903.82

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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.