Home / 2,876.09-4,319.60-1,788.05

Finding the Fourth Proportional to 2,876.09, 4,319.60 and 1,788.05

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Solution

The fourth proportional to 2,876.09, 4,319.60 and 1,788.05 is: 2,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.09 : 4,319.60 = 1,788.05 : x
  2. Step 2: Convert to fraction form
    2,876.09/4,319.60 = 1,788.05/x
  3. Step 3: Cross multiply
    2,876.09x = 4,319.60 × 1,788.05
  4. Step 4: Simplify right side
    2,876.09x = 7,723,630.24
  5. Step 5: Solve for x
    x = 7,723,630.24/2,876.09
  6. Step 6: Final answer
    x = 2,685.47

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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.