Home / 2,788.74-4,179.51-1,538.49

Finding the Fourth Proportional to 2,788.74, 4,179.51 and 1,538.49

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Solution

The fourth proportional to 2,788.74, 4,179.51 and 1,538.49 is: 2,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.74 : 4,179.51 = 1,538.49 : x
  2. Step 2: Convert to fraction form
    2,788.74/4,179.51 = 1,538.49/x
  3. Step 3: Cross multiply
    2,788.74x = 4,179.51 × 1,538.49
  4. Step 4: Simplify right side
    2,788.74x = 6,430,134.34
  5. Step 5: Solve for x
    x = 6,430,134.34/2,788.74
  6. Step 6: Final answer
    x = 2,305.75

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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.