Home / 2,136.90-3,202.65-1,904.70

Finding the Fourth Proportional to 2,136.90, 3,202.65 and 1,904.70

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Solution

The fourth proportional to 2,136.90, 3,202.65 and 1,904.70 is: 2,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.90 : 3,202.65 = 1,904.70 : x
  2. Step 2: Convert to fraction form
    2,136.90/3,202.65 = 1,904.70/x
  3. Step 3: Cross multiply
    2,136.90x = 3,202.65 × 1,904.70
  4. Step 4: Simplify right side
    2,136.90x = 6,100,087.46
  5. Step 5: Solve for x
    x = 6,100,087.46/2,136.90
  6. Step 6: Final answer
    x = 2,854.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.