Home / 4,089.47-6,128.52-2,137.77

Finding the Fourth Proportional to 4,089.47, 6,128.52 and 2,137.77

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Solution

The fourth proportional to 4,089.47, 6,128.52 and 2,137.77 is: 3,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.47 : 6,128.52 = 2,137.77 : x
  2. Step 2: Convert to fraction form
    4,089.47/6,128.52 = 2,137.77/x
  3. Step 3: Cross multiply
    4,089.47x = 6,128.52 × 2,137.77
  4. Step 4: Simplify right side
    4,089.47x = 13,101,366.20
  5. Step 5: Solve for x
    x = 13,101,366.20/4,089.47
  6. Step 6: Final answer
    x = 3,203.68

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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.