Home / 2,788.05-4,180.59-1,869.51

Finding the Fourth Proportional to 2,788.05, 4,180.59 and 1,869.51

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Solution

The fourth proportional to 2,788.05, 4,180.59 and 1,869.51 is: 2,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.05 : 4,180.59 = 1,869.51 : x
  2. Step 2: Convert to fraction form
    2,788.05/4,180.59 = 1,869.51/x
  3. Step 3: Cross multiply
    2,788.05x = 4,180.59 × 1,869.51
  4. Step 4: Simplify right side
    2,788.05x = 7,815,654.81
  5. Step 5: Solve for x
    x = 7,815,654.81/2,788.05
  6. Step 6: Final answer
    x = 2,803.27

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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.