Home / 3,746.86-5,170.84-2,154.03

Finding the Fourth Proportional to 3,746.86, 5,170.84 and 2,154.03

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Solution

The fourth proportional to 3,746.86, 5,170.84 and 2,154.03 is: 2,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.86 : 5,170.84 = 2,154.03 : x
  2. Step 2: Convert to fraction form
    3,746.86/5,170.84 = 2,154.03/x
  3. Step 3: Cross multiply
    3,746.86x = 5,170.84 × 2,154.03
  4. Step 4: Simplify right side
    3,746.86x = 11,138,127.79
  5. Step 5: Solve for x
    x = 11,138,127.79/3,746.86
  6. Step 6: Final answer
    x = 2,972.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.