Home / 1,800.50-2,485.77-1,180.58

Finding the Fourth Proportional to 1,800.50, 2,485.77 and 1,180.58

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Solution

The fourth proportional to 1,800.50, 2,485.77 and 1,180.58 is: 1,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.50 : 2,485.77 = 1,180.58 : x
  2. Step 2: Convert to fraction form
    1,800.50/2,485.77 = 1,180.58/x
  3. Step 3: Cross multiply
    1,800.50x = 2,485.77 × 1,180.58
  4. Step 4: Simplify right side
    1,800.50x = 2,934,650.35
  5. Step 5: Solve for x
    x = 2,934,650.35/1,800.50
  6. Step 6: Final answer
    x = 1,629.91

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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.