Home / 3,833.19-5,290.34-2,154.70

Finding the Fourth Proportional to 3,833.19, 5,290.34 and 2,154.70

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Solution

The fourth proportional to 3,833.19, 5,290.34 and 2,154.70 is: 2,973.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.19 : 5,290.34 = 2,154.70 : x
  2. Step 2: Convert to fraction form
    3,833.19/5,290.34 = 2,154.70/x
  3. Step 3: Cross multiply
    3,833.19x = 5,290.34 × 2,154.70
  4. Step 4: Simplify right side
    3,833.19x = 11,399,097.50
  5. Step 5: Solve for x
    x = 11,399,097.50/3,833.19
  6. Step 6: Final answer
    x = 2,973.79

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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.