Home / 1,732.33-2,390.21-986.23

Finding the Fourth Proportional to 1,732.33, 2,390.21 and 986.23

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Solution

The fourth proportional to 1,732.33, 2,390.21 and 986.23 is: 1,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.33 : 2,390.21 = 986.23 : x
  2. Step 2: Convert to fraction form
    1,732.33/2,390.21 = 986.23/x
  3. Step 3: Cross multiply
    1,732.33x = 2,390.21 × 986.23
  4. Step 4: Simplify right side
    1,732.33x = 2,357,285.90
  5. Step 5: Solve for x
    x = 2,357,285.90/1,732.33
  6. Step 6: Final answer
    x = 1,360.76

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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.