Home / 1,786.12-2,666.38-1,552.64

Finding the Fourth Proportional to 1,786.12, 2,666.38 and 1,552.64

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Solution

The fourth proportional to 1,786.12, 2,666.38 and 1,552.64 is: 2,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.12 : 2,666.38 = 1,552.64 : x
  2. Step 2: Convert to fraction form
    1,786.12/2,666.38 = 1,552.64/x
  3. Step 3: Cross multiply
    1,786.12x = 2,666.38 × 1,552.64
  4. Step 4: Simplify right side
    1,786.12x = 4,139,914.91
  5. Step 5: Solve for x
    x = 4,139,914.91/1,786.12
  6. Step 6: Final answer
    x = 2,317.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.