Home / 3,656.70-5,485.32-1,191.44

Finding the Fourth Proportional to 3,656.70, 5,485.32 and 1,191.44

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Solution

The fourth proportional to 3,656.70, 5,485.32 and 1,191.44 is: 1,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.70 : 5,485.32 = 1,191.44 : x
  2. Step 2: Convert to fraction form
    3,656.70/5,485.32 = 1,191.44/x
  3. Step 3: Cross multiply
    3,656.70x = 5,485.32 × 1,191.44
  4. Step 4: Simplify right side
    3,656.70x = 6,535,429.66
  5. Step 5: Solve for x
    x = 6,535,429.66/3,656.70
  6. Step 6: Final answer
    x = 1,787.25

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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.