Home / 3,788.76-5,675.70-1,934.40

Finding the Fourth Proportional to 3,788.76, 5,675.70 and 1,934.40

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Solution

The fourth proportional to 3,788.76, 5,675.70 and 1,934.40 is: 2,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.76 : 5,675.70 = 1,934.40 : x
  2. Step 2: Convert to fraction form
    3,788.76/5,675.70 = 1,934.40/x
  3. Step 3: Cross multiply
    3,788.76x = 5,675.70 × 1,934.40
  4. Step 4: Simplify right side
    3,788.76x = 10,979,074.08
  5. Step 5: Solve for x
    x = 10,979,074.08/3,788.76
  6. Step 6: Final answer
    x = 2,897.80

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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.