Home / 3,127.80-4,693.32-1,396.56

Finding the Fourth Proportional to 3,127.80, 4,693.32 and 1,396.56

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Solution

The fourth proportional to 3,127.80, 4,693.32 and 1,396.56 is: 2,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.80 : 4,693.32 = 1,396.56 : x
  2. Step 2: Convert to fraction form
    3,127.80/4,693.32 = 1,396.56/x
  3. Step 3: Cross multiply
    3,127.80x = 4,693.32 × 1,396.56
  4. Step 4: Simplify right side
    3,127.80x = 6,554,502.98
  5. Step 5: Solve for x
    x = 6,554,502.98/3,127.80
  6. Step 6: Final answer
    x = 2,095.56

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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.