Home / 4,879.29-7,315.68-1,591.23

Finding the Fourth Proportional to 4,879.29, 7,315.68 and 1,591.23

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Solution

The fourth proportional to 4,879.29, 7,315.68 and 1,591.23 is: 2,385.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.29 : 7,315.68 = 1,591.23 : x
  2. Step 2: Convert to fraction form
    4,879.29/7,315.68 = 1,591.23/x
  3. Step 3: Cross multiply
    4,879.29x = 7,315.68 × 1,591.23
  4. Step 4: Simplify right side
    4,879.29x = 11,640,929.49
  5. Step 5: Solve for x
    x = 11,640,929.49/4,879.29
  6. Step 6: Final answer
    x = 2,385.78

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1.5x scale

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.