Home / 3,098.80-4,647.30-1,124.20

Finding the Fourth Proportional to 3,098.80, 4,647.30 and 1,124.20

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Solution

The fourth proportional to 3,098.80, 4,647.30 and 1,124.20 is: 1,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.80 : 4,647.30 = 1,124.20 : x
  2. Step 2: Convert to fraction form
    3,098.80/4,647.30 = 1,124.20/x
  3. Step 3: Cross multiply
    3,098.80x = 4,647.30 × 1,124.20
  4. Step 4: Simplify right side
    3,098.80x = 5,224,494.66
  5. Step 5: Solve for x
    x = 5,224,494.66/3,098.80
  6. Step 6: Final answer
    x = 1,685.97

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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.