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Finding the Fourth Proportional to 1,741.63, 2,403.63 and 1,078.87

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Solution

The fourth proportional to 1,741.63, 2,403.63 and 1,078.87 is: 1,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.63 : 2,403.63 = 1,078.87 : x
  2. Step 2: Convert to fraction form
    1,741.63/2,403.63 = 1,078.87/x
  3. Step 3: Cross multiply
    1,741.63x = 2,403.63 × 1,078.87
  4. Step 4: Simplify right side
    1,741.63x = 2,593,204.30
  5. Step 5: Solve for x
    x = 2,593,204.30/1,741.63
  6. Step 6: Final answer
    x = 1,488.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.