Home / 2,634.81-3,636-1,455.86

Finding the Fourth Proportional to 2,634.81, 3,636 and 1,455.86

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Solution

The fourth proportional to 2,634.81, 3,636 and 1,455.86 is: 2,009.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,634.81 : 3,636 = 1,455.86 : x
  2. Step 2: Convert to fraction form
    2,634.81/3,636 = 1,455.86/x
  3. Step 3: Cross multiply
    2,634.81x = 3,636 × 1,455.86
  4. Step 4: Simplify right side
    2,634.81x = 5,293,488.78
  5. Step 5: Solve for x
    x = 5,293,488.78/2,634.81
  6. Step 6: Final answer
    x = 2,009.06

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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.