Home / 3,780.21-5,670.30-1,006.88

Finding the Fourth Proportional to 3,780.21, 5,670.30 and 1,006.88

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Solution

The fourth proportional to 3,780.21, 5,670.30 and 1,006.88 is: 1,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.21 : 5,670.30 = 1,006.88 : x
  2. Step 2: Convert to fraction form
    3,780.21/5,670.30 = 1,006.88/x
  3. Step 3: Cross multiply
    3,780.21x = 5,670.30 × 1,006.88
  4. Step 4: Simplify right side
    3,780.21x = 5,709,283.31
  5. Step 5: Solve for x
    x = 5,709,283.31/3,780.21
  6. Step 6: Final answer
    x = 1,510.31

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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.