Home / 2,788.16-4,178.39-1,617.44

Finding the Fourth Proportional to 2,788.16, 4,178.39 and 1,617.44

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Solution

The fourth proportional to 2,788.16, 4,178.39 and 1,617.44 is: 2,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.16 : 4,178.39 = 1,617.44 : x
  2. Step 2: Convert to fraction form
    2,788.16/4,178.39 = 1,617.44/x
  3. Step 3: Cross multiply
    2,788.16x = 4,178.39 × 1,617.44
  4. Step 4: Simplify right side
    2,788.16x = 6,758,266.14
  5. Step 5: Solve for x
    x = 6,758,266.14/2,788.16
  6. Step 6: Final answer
    x = 2,423.92

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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.