Home / 3,834.63-5,291.95-2,156.07

Finding the Fourth Proportional to 3,834.63, 5,291.95 and 2,156.07

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Solution

The fourth proportional to 3,834.63, 5,291.95 and 2,156.07 is: 2,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.63 : 5,291.95 = 2,156.07 : x
  2. Step 2: Convert to fraction form
    3,834.63/5,291.95 = 2,156.07/x
  3. Step 3: Cross multiply
    3,834.63x = 5,291.95 × 2,156.07
  4. Step 4: Simplify right side
    3,834.63x = 11,409,814.64
  5. Step 5: Solve for x
    x = 11,409,814.64/3,834.63
  6. Step 6: Final answer
    x = 2,975.47

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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.