Home / 5,129.16-7,694.77-1,619.71

Finding the Fourth Proportional to 5,129.16, 7,694.77 and 1,619.71

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Solution

The fourth proportional to 5,129.16, 7,694.77 and 1,619.71 is: 2,429.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.16 : 7,694.77 = 1,619.71 : x
  2. Step 2: Convert to fraction form
    5,129.16/7,694.77 = 1,619.71/x
  3. Step 3: Cross multiply
    5,129.16x = 7,694.77 × 1,619.71
  4. Step 4: Simplify right side
    5,129.16x = 12,463,295.92
  5. Step 5: Solve for x
    x = 12,463,295.92/5,129.16
  6. Step 6: Final answer
    x = 2,429.89

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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.