Home / 2,007.58-3,011.38-1,318.61

Finding the Fourth Proportional to 2,007.58, 3,011.38 and 1,318.61

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Solution

The fourth proportional to 2,007.58, 3,011.38 and 1,318.61 is: 1,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.58 : 3,011.38 = 1,318.61 : x
  2. Step 2: Convert to fraction form
    2,007.58/3,011.38 = 1,318.61/x
  3. Step 3: Cross multiply
    2,007.58x = 3,011.38 × 1,318.61
  4. Step 4: Simplify right side
    2,007.58x = 3,970,829.19
  5. Step 5: Solve for x
    x = 3,970,829.19/2,007.58
  6. Step 6: Final answer
    x = 1,977.92

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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.