Home / 1,651.50-2,279.79-1,180.35

Finding the Fourth Proportional to 1,651.50, 2,279.79 and 1,180.35

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Solution

The fourth proportional to 1,651.50, 2,279.79 and 1,180.35 is: 1,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.50 : 2,279.79 = 1,180.35 : x
  2. Step 2: Convert to fraction form
    1,651.50/2,279.79 = 1,180.35/x
  3. Step 3: Cross multiply
    1,651.50x = 2,279.79 × 1,180.35
  4. Step 4: Simplify right side
    1,651.50x = 2,690,950.13
  5. Step 5: Solve for x
    x = 2,690,950.13/1,651.50
  6. Step 6: Final answer
    x = 1,629.40

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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.