Home / 3,485.80-5,230.52-1,406.32

Finding the Fourth Proportional to 3,485.80, 5,230.52 and 1,406.32

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Solution

The fourth proportional to 3,485.80, 5,230.52 and 1,406.32 is: 2,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.80 : 5,230.52 = 1,406.32 : x
  2. Step 2: Convert to fraction form
    3,485.80/5,230.52 = 1,406.32/x
  3. Step 3: Cross multiply
    3,485.80x = 5,230.52 × 1,406.32
  4. Step 4: Simplify right side
    3,485.80x = 7,355,784.89
  5. Step 5: Solve for x
    x = 7,355,784.89/3,485.80
  6. Step 6: Final answer
    x = 2,110.21

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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.