Home / 1,765.65-2,431.67-1,727.39

Finding the Fourth Proportional to 1,765.65, 2,431.67 and 1,727.39

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Solution

The fourth proportional to 1,765.65, 2,431.67 and 1,727.39 is: 2,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.65 : 2,431.67 = 1,727.39 : x
  2. Step 2: Convert to fraction form
    1,765.65/2,431.67 = 1,727.39/x
  3. Step 3: Cross multiply
    1,765.65x = 2,431.67 × 1,727.39
  4. Step 4: Simplify right side
    1,765.65x = 4,200,421.65
  5. Step 5: Solve for x
    x = 4,200,421.65/1,765.65
  6. Step 6: Final answer
    x = 2,378.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.