Home / 2,072.16-2,859.60-1,127.95

Finding the Fourth Proportional to 2,072.16, 2,859.60 and 1,127.95

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Solution

The fourth proportional to 2,072.16, 2,859.60 and 1,127.95 is: 1,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.16 : 2,859.60 = 1,127.95 : x
  2. Step 2: Convert to fraction form
    2,072.16/2,859.60 = 1,127.95/x
  3. Step 3: Cross multiply
    2,072.16x = 2,859.60 × 1,127.95
  4. Step 4: Simplify right side
    2,072.16x = 3,225,485.82
  5. Step 5: Solve for x
    x = 3,225,485.82/2,072.16
  6. Step 6: Final answer
    x = 1,556.58

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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.