Home / 3,127.77-4,315.91-1,730.61

Finding the Fourth Proportional to 3,127.77, 4,315.91 and 1,730.61

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Solution

The fourth proportional to 3,127.77, 4,315.91 and 1,730.61 is: 2,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.77 : 4,315.91 = 1,730.61 : x
  2. Step 2: Convert to fraction form
    3,127.77/4,315.91 = 1,730.61/x
  3. Step 3: Cross multiply
    3,127.77x = 4,315.91 × 1,730.61
  4. Step 4: Simplify right side
    3,127.77x = 7,469,148.35
  5. Step 5: Solve for x
    x = 7,469,148.35/3,127.77
  6. Step 6: Final answer
    x = 2,388.01

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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.