Home / 3,838.67-5,296.99-2,160.04

Finding the Fourth Proportional to 3,838.67, 5,296.99 and 2,160.04

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Solution

The fourth proportional to 3,838.67, 5,296.99 and 2,160.04 is: 2,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.67 : 5,296.99 = 2,160.04 : x
  2. Step 2: Convert to fraction form
    3,838.67/5,296.99 = 2,160.04/x
  3. Step 3: Cross multiply
    3,838.67x = 5,296.99 × 2,160.04
  4. Step 4: Simplify right side
    3,838.67x = 11,441,699.48
  5. Step 5: Solve for x
    x = 11,441,699.48/3,838.67
  6. Step 6: Final answer
    x = 2,980.64

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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.