Home / 1,639.92-2,262.12-1,050.24

Finding the Fourth Proportional to 1,639.92, 2,262.12 and 1,050.24

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Solution

The fourth proportional to 1,639.92, 2,262.12 and 1,050.24 is: 1,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.92 : 2,262.12 = 1,050.24 : x
  2. Step 2: Convert to fraction form
    1,639.92/2,262.12 = 1,050.24/x
  3. Step 3: Cross multiply
    1,639.92x = 2,262.12 × 1,050.24
  4. Step 4: Simplify right side
    1,639.92x = 2,375,768.91
  5. Step 5: Solve for x
    x = 2,375,768.91/1,639.92
  6. Step 6: Final answer
    x = 1,448.71

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1.5x scale

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.