Home / 1,911.08-2,639.58-1,467.92

Finding the Fourth Proportional to 1,911.08, 2,639.58 and 1,467.92

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Solution

The fourth proportional to 1,911.08, 2,639.58 and 1,467.92 is: 2,027.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.08 : 2,639.58 = 1,467.92 : x
  2. Step 2: Convert to fraction form
    1,911.08/2,639.58 = 1,467.92/x
  3. Step 3: Cross multiply
    1,911.08x = 2,639.58 × 1,467.92
  4. Step 4: Simplify right side
    1,911.08x = 3,874,692.27
  5. Step 5: Solve for x
    x = 3,874,692.27/1,911.08
  6. Step 6: Final answer
    x = 2,027.49

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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.