Home / 2,645.26-3,966.68-1,412.38

Finding the Fourth Proportional to 2,645.26, 3,966.68 and 1,412.38

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Solution

The fourth proportional to 2,645.26, 3,966.68 and 1,412.38 is: 2,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.26 : 3,966.68 = 1,412.38 : x
  2. Step 2: Convert to fraction form
    2,645.26/3,966.68 = 1,412.38/x
  3. Step 3: Cross multiply
    2,645.26x = 3,966.68 × 1,412.38
  4. Step 4: Simplify right side
    2,645.26x = 5,602,459.50
  5. Step 5: Solve for x
    x = 5,602,459.50/2,645.26
  6. Step 6: Final answer
    x = 2,117.92

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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.