Home / 2,378.90-3,567.06-917.66

Finding the Fourth Proportional to 2,378.90, 3,567.06 and 917.66

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Solution

The fourth proportional to 2,378.90, 3,567.06 and 917.66 is: 1,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.90 : 3,567.06 = 917.66 : x
  2. Step 2: Convert to fraction form
    2,378.90/3,567.06 = 917.66/x
  3. Step 3: Cross multiply
    2,378.90x = 3,567.06 × 917.66
  4. Step 4: Simplify right side
    2,378.90x = 3,273,348.28
  5. Step 5: Solve for x
    x = 3,273,348.28/2,378.90
  6. Step 6: Final answer
    x = 1,375.99

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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.