Home / 1,717.28-2,575.80-986.24

Finding the Fourth Proportional to 1,717.28, 2,575.80 and 986.24

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Solution

The fourth proportional to 1,717.28, 2,575.80 and 986.24 is: 1,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.28 : 2,575.80 = 986.24 : x
  2. Step 2: Convert to fraction form
    1,717.28/2,575.80 = 986.24/x
  3. Step 3: Cross multiply
    1,717.28x = 2,575.80 × 986.24
  4. Step 4: Simplify right side
    1,717.28x = 2,540,356.99
  5. Step 5: Solve for x
    x = 2,540,356.99/1,717.28
  6. Step 6: Final answer
    x = 1,479.29

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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.