Home / 1,377.16-2,060.94-1,127.48

Finding the Fourth Proportional to 1,377.16, 2,060.94 and 1,127.48

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Solution

The fourth proportional to 1,377.16, 2,060.94 and 1,127.48 is: 1,687.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.16 : 2,060.94 = 1,127.48 : x
  2. Step 2: Convert to fraction form
    1,377.16/2,060.94 = 1,127.48/x
  3. Step 3: Cross multiply
    1,377.16x = 2,060.94 × 1,127.48
  4. Step 4: Simplify right side
    1,377.16x = 2,323,662.99
  5. Step 5: Solve for x
    x = 2,323,662.99/1,377.16
  6. Step 6: Final answer
    x = 1,687.29

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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.