Home / 3,780.41-5,669.75-1,439.57

Finding the Fourth Proportional to 3,780.41, 5,669.75 and 1,439.57

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Solution

The fourth proportional to 3,780.41, 5,669.75 and 1,439.57 is: 2,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.41 : 5,669.75 = 1,439.57 : x
  2. Step 2: Convert to fraction form
    3,780.41/5,669.75 = 1,439.57/x
  3. Step 3: Cross multiply
    3,780.41x = 5,669.75 × 1,439.57
  4. Step 4: Simplify right side
    3,780.41x = 8,161,994.81
  5. Step 5: Solve for x
    x = 8,161,994.81/3,780.41
  6. Step 6: Final answer
    x = 2,159.03

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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.