Home / 5,612.70-8,419.07-2,102.57

Finding the Fourth Proportional to 5,612.70, 8,419.07 and 2,102.57

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Solution

The fourth proportional to 5,612.70, 8,419.07 and 2,102.57 is: 3,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.70 : 8,419.07 = 2,102.57 : x
  2. Step 2: Convert to fraction form
    5,612.70/8,419.07 = 2,102.57/x
  3. Step 3: Cross multiply
    5,612.70x = 8,419.07 × 2,102.57
  4. Step 4: Simplify right side
    5,612.70x = 17,701,684.01
  5. Step 5: Solve for x
    x = 17,701,684.01/5,612.70
  6. Step 6: Final answer
    x = 3,153.86

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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.