Home / 994.14-1,371.75-621.18

Finding the Fourth Proportional to 994.14, 1,371.75 and 621.18

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Solution

The fourth proportional to 994.14, 1,371.75 and 621.18 is: 857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.14 : 1,371.75 = 621.18 : x
  2. Step 2: Convert to fraction form
    994.14/1,371.75 = 621.18/x
  3. Step 3: Cross multiply
    994.14x = 1,371.75 × 621.18
  4. Step 4: Simplify right side
    994.14x = 852,103.67
  5. Step 5: Solve for x
    x = 852,103.67/994.14
  6. Step 6: Final answer
    x = 857.13

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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.