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Finding the Fourth Proportional to 2,788.55, 4,184.48 and 1,034.79

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Solution

The fourth proportional to 2,788.55, 4,184.48 and 1,034.79 is: 1,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.55 : 4,184.48 = 1,034.79 : x
  2. Step 2: Convert to fraction form
    2,788.55/4,184.48 = 1,034.79/x
  3. Step 3: Cross multiply
    2,788.55x = 4,184.48 × 1,034.79
  4. Step 4: Simplify right side
    2,788.55x = 4,330,058.06
  5. Step 5: Solve for x
    x = 4,330,058.06/2,788.55
  6. Step 6: Final answer
    x = 1,552.80

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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.