Home / 3,128.98-4,694.55-1,181.74

Finding the Fourth Proportional to 3,128.98, 4,694.55 and 1,181.74

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Solution

The fourth proportional to 3,128.98, 4,694.55 and 1,181.74 is: 1,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.98 : 4,694.55 = 1,181.74 : x
  2. Step 2: Convert to fraction form
    3,128.98/4,694.55 = 1,181.74/x
  3. Step 3: Cross multiply
    3,128.98x = 4,694.55 × 1,181.74
  4. Step 4: Simplify right side
    3,128.98x = 5,547,737.52
  5. Step 5: Solve for x
    x = 5,547,737.52/3,128.98
  6. Step 6: Final answer
    x = 1,773.02

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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.