Home / 3,753.74-5,173.95-2,820.62

Finding the Fourth Proportional to 3,753.74, 5,173.95 and 2,820.62

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Solution

The fourth proportional to 3,753.74, 5,173.95 and 2,820.62 is: 3,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.74 : 5,173.95 = 2,820.62 : x
  2. Step 2: Convert to fraction form
    3,753.74/5,173.95 = 2,820.62/x
  3. Step 3: Cross multiply
    3,753.74x = 5,173.95 × 2,820.62
  4. Step 4: Simplify right side
    3,753.74x = 14,593,746.85
  5. Step 5: Solve for x
    x = 14,593,746.85/3,753.74
  6. Step 6: Final answer
    x = 3,887.79

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1.5x scale

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.