Home / 3,623.72-5,000.78-2,051.80

Finding the Fourth Proportional to 3,623.72, 5,000.78 and 2,051.80

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Solution

The fourth proportional to 3,623.72, 5,000.78 and 2,051.80 is: 2,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.72 : 5,000.78 = 2,051.80 : x
  2. Step 2: Convert to fraction form
    3,623.72/5,000.78 = 2,051.80/x
  3. Step 3: Cross multiply
    3,623.72x = 5,000.78 × 2,051.80
  4. Step 4: Simplify right side
    3,623.72x = 10,260,600.40
  5. Step 5: Solve for x
    x = 10,260,600.40/3,623.72
  6. Step 6: Final answer
    x = 2,831.51

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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.