Home / 3,739.38-5,611.49-1,430.88

Finding the Fourth Proportional to 3,739.38, 5,611.49 and 1,430.88

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Solution

The fourth proportional to 3,739.38, 5,611.49 and 1,430.88 is: 2,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.38 : 5,611.49 = 1,430.88 : x
  2. Step 2: Convert to fraction form
    3,739.38/5,611.49 = 1,430.88/x
  3. Step 3: Cross multiply
    3,739.38x = 5,611.49 × 1,430.88
  4. Step 4: Simplify right side
    3,739.38x = 8,029,368.81
  5. Step 5: Solve for x
    x = 8,029,368.81/3,739.38
  6. Step 6: Final answer
    x = 2,147.25

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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.