Home / 5,042.63-7,564.05-2,120.96

Finding the Fourth Proportional to 5,042.63, 7,564.05 and 2,120.96

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Solution

The fourth proportional to 5,042.63, 7,564.05 and 2,120.96 is: 3,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042.63 : 7,564.05 = 2,120.96 : x
  2. Step 2: Convert to fraction form
    5,042.63/7,564.05 = 2,120.96/x
  3. Step 3: Cross multiply
    5,042.63x = 7,564.05 × 2,120.96
  4. Step 4: Simplify right side
    5,042.63x = 16,043,009.67
  5. Step 5: Solve for x
    x = 16,043,009.67/5,042.63
  6. Step 6: Final answer
    x = 3,181.48

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1.5x scale

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.