Home / 3,518.80-5,267.69-2,127.93

Finding the Fourth Proportional to 3,518.80, 5,267.69 and 2,127.93

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Solution

The fourth proportional to 3,518.80, 5,267.69 and 2,127.93 is: 3,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.80 : 5,267.69 = 2,127.93 : x
  2. Step 2: Convert to fraction form
    3,518.80/5,267.69 = 2,127.93/x
  3. Step 3: Cross multiply
    3,518.80x = 5,267.69 × 2,127.93
  4. Step 4: Simplify right side
    3,518.80x = 11,209,275.58
  5. Step 5: Solve for x
    x = 11,209,275.58/3,518.80
  6. Step 6: Final answer
    x = 3,185.54

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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.