Home / 5,612.70-8,419.96-2,103.94

Finding the Fourth Proportional to 5,612.70, 8,419.96 and 2,103.94

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Solution

The fourth proportional to 5,612.70, 8,419.96 and 2,103.94 is: 3,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.70 : 8,419.96 = 2,103.94 : x
  2. Step 2: Convert to fraction form
    5,612.70/8,419.96 = 2,103.94/x
  3. Step 3: Cross multiply
    5,612.70x = 8,419.96 × 2,103.94
  4. Step 4: Simplify right side
    5,612.70x = 17,715,090.64
  5. Step 5: Solve for x
    x = 17,715,090.64/5,612.70
  6. Step 6: Final answer
    x = 3,156.25

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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.