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Finding the Fourth Proportional to 2,378.63, 3,567.25 and 917.44

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Solution

The fourth proportional to 2,378.63, 3,567.25 and 917.44 is: 1,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.63 : 3,567.25 = 917.44 : x
  2. Step 2: Convert to fraction form
    2,378.63/3,567.25 = 917.44/x
  3. Step 3: Cross multiply
    2,378.63x = 3,567.25 × 917.44
  4. Step 4: Simplify right side
    2,378.63x = 3,272,726.63
  5. Step 5: Solve for x
    x = 3,272,726.63/2,378.63
  6. Step 6: Final answer
    x = 1,375.89

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1.5x scale

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.