Home / 7,005.32-10,507.62-1,811

Finding the Fourth Proportional to 7,005.32, 10,507.62 and 1,811

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Solution

The fourth proportional to 7,005.32, 10,507.62 and 1,811 is: 2,716.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.32 : 10,507.62 = 1,811 : x
  2. Step 2: Convert to fraction form
    7,005.32/10,507.62 = 1,811/x
  3. Step 3: Cross multiply
    7,005.32x = 10,507.62 × 1,811
  4. Step 4: Simplify right side
    7,005.32x = 19,029,299.82
  5. Step 5: Solve for x
    x = 19,029,299.82/7,005.32
  6. Step 6: Final answer
    x = 2,716.41

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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.