Home / 3,061.80-4,586.80-1,830.20

Finding the Fourth Proportional to 3,061.80, 4,586.80 and 1,830.20

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Solution

The fourth proportional to 3,061.80, 4,586.80 and 1,830.20 is: 2,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.80 : 4,586.80 = 1,830.20 : x
  2. Step 2: Convert to fraction form
    3,061.80/4,586.80 = 1,830.20/x
  3. Step 3: Cross multiply
    3,061.80x = 4,586.80 × 1,830.20
  4. Step 4: Simplify right side
    3,061.80x = 8,394,761.36
  5. Step 5: Solve for x
    x = 8,394,761.36/3,061.80
  6. Step 6: Final answer
    x = 2,741.77

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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.