Home / 3,838.35-5,296.71-2,159.83

Finding the Fourth Proportional to 3,838.35, 5,296.71 and 2,159.83

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Solution

The fourth proportional to 3,838.35, 5,296.71 and 2,159.83 is: 2,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.35 : 5,296.71 = 2,159.83 : x
  2. Step 2: Convert to fraction form
    3,838.35/5,296.71 = 2,159.83/x
  3. Step 3: Cross multiply
    3,838.35x = 5,296.71 × 2,159.83
  4. Step 4: Simplify right side
    3,838.35x = 11,439,993.16
  5. Step 5: Solve for x
    x = 11,439,993.16/3,838.35
  6. Step 6: Final answer
    x = 2,980.45

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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.