Home / 1,732.15-2,390.50-986.34

Finding the Fourth Proportional to 1,732.15, 2,390.50 and 986.34

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Solution

The fourth proportional to 1,732.15, 2,390.50 and 986.34 is: 1,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.15 : 2,390.50 = 986.34 : x
  2. Step 2: Convert to fraction form
    1,732.15/2,390.50 = 986.34/x
  3. Step 3: Cross multiply
    1,732.15x = 2,390.50 × 986.34
  4. Step 4: Simplify right side
    1,732.15x = 2,357,855.97
  5. Step 5: Solve for x
    x = 2,357,855.97/1,732.15
  6. Step 6: Final answer
    x = 1,361.23

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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.