Home / 2,729.80-4,095.36-1,270

Finding the Fourth Proportional to 2,729.80, 4,095.36 and 1,270

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Solution

The fourth proportional to 2,729.80, 4,095.36 and 1,270 is: 1,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.80 : 4,095.36 = 1,270 : x
  2. Step 2: Convert to fraction form
    2,729.80/4,095.36 = 1,270/x
  3. Step 3: Cross multiply
    2,729.80x = 4,095.36 × 1,270
  4. Step 4: Simplify right side
    2,729.80x = 5,201,107.20
  5. Step 5: Solve for x
    x = 5,201,107.20/2,729.80
  6. Step 6: Final answer
    x = 1,905.31

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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.