Home / 3,814.47-5,263.65-2,135.79

Finding the Fourth Proportional to 3,814.47, 5,263.65 and 2,135.79

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Solution

The fourth proportional to 3,814.47, 5,263.65 and 2,135.79 is: 2,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.47 : 5,263.65 = 2,135.79 : x
  2. Step 2: Convert to fraction form
    3,814.47/5,263.65 = 2,135.79/x
  3. Step 3: Cross multiply
    3,814.47x = 5,263.65 × 2,135.79
  4. Step 4: Simplify right side
    3,814.47x = 11,242,051.03
  5. Step 5: Solve for x
    x = 11,242,051.03/3,814.47
  6. Step 6: Final answer
    x = 2,947.21

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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.