Home / 3,550.12-5,325.50-1,085.20

Finding the Fourth Proportional to 3,550.12, 5,325.50 and 1,085.20

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Solution

The fourth proportional to 3,550.12, 5,325.50 and 1,085.20 is: 1,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.12 : 5,325.50 = 1,085.20 : x
  2. Step 2: Convert to fraction form
    3,550.12/5,325.50 = 1,085.20/x
  3. Step 3: Cross multiply
    3,550.12x = 5,325.50 × 1,085.20
  4. Step 4: Simplify right side
    3,550.12x = 5,779,232.60
  5. Step 5: Solve for x
    x = 5,779,232.60/3,550.12
  6. Step 6: Final answer
    x = 1,627.90

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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.