Home / 1,712.03-2,568.42-724.28

Finding the Fourth Proportional to 1,712.03, 2,568.42 and 724.28

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Solution

The fourth proportional to 1,712.03, 2,568.42 and 724.28 is: 1,086.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.03 : 2,568.42 = 724.28 : x
  2. Step 2: Convert to fraction form
    1,712.03/2,568.42 = 724.28/x
  3. Step 3: Cross multiply
    1,712.03x = 2,568.42 × 724.28
  4. Step 4: Simplify right side
    1,712.03x = 1,860,242.40
  5. Step 5: Solve for x
    x = 1,860,242.40/1,712.03
  6. Step 6: Final answer
    x = 1,086.57

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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.