Home / 3,800.51-5,244.18-2,121.72

Finding the Fourth Proportional to 3,800.51, 5,244.18 and 2,121.72

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Solution

The fourth proportional to 3,800.51, 5,244.18 and 2,121.72 is: 2,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.51 : 5,244.18 = 2,121.72 : x
  2. Step 2: Convert to fraction form
    3,800.51/5,244.18 = 2,121.72/x
  3. Step 3: Cross multiply
    3,800.51x = 5,244.18 × 2,121.72
  4. Step 4: Simplify right side
    3,800.51x = 11,126,681.59
  5. Step 5: Solve for x
    x = 11,126,681.59/3,800.51
  6. Step 6: Final answer
    x = 2,927.68

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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.