Home / 3,820.80-5,731.01-1,047.27

Finding the Fourth Proportional to 3,820.80, 5,731.01 and 1,047.27

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Solution

The fourth proportional to 3,820.80, 5,731.01 and 1,047.27 is: 1,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.80 : 5,731.01 = 1,047.27 : x
  2. Step 2: Convert to fraction form
    3,820.80/5,731.01 = 1,047.27/x
  3. Step 3: Cross multiply
    3,820.80x = 5,731.01 × 1,047.27
  4. Step 4: Simplify right side
    3,820.80x = 6,001,909.61
  5. Step 5: Solve for x
    x = 6,001,909.61/3,820.80
  6. Step 6: Final answer
    x = 1,570.85

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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.