Home / 1,639.96-2,262.16-1,197.32

Finding the Fourth Proportional to 1,639.96, 2,262.16 and 1,197.32

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Solution

The fourth proportional to 1,639.96, 2,262.16 and 1,197.32 is: 1,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.96 : 2,262.16 = 1,197.32 : x
  2. Step 2: Convert to fraction form
    1,639.96/2,262.16 = 1,197.32/x
  3. Step 3: Cross multiply
    1,639.96x = 2,262.16 × 1,197.32
  4. Step 4: Simplify right side
    1,639.96x = 2,708,529.41
  5. Step 5: Solve for x
    x = 2,708,529.41/1,639.96
  6. Step 6: Final answer
    x = 1,651.58

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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.