Home / 2,775.76-3,830.58-1,580.62

Finding the Fourth Proportional to 2,775.76, 3,830.58 and 1,580.62

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Solution

The fourth proportional to 2,775.76, 3,830.58 and 1,580.62 is: 2,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.76 : 3,830.58 = 1,580.62 : x
  2. Step 2: Convert to fraction form
    2,775.76/3,830.58 = 1,580.62/x
  3. Step 3: Cross multiply
    2,775.76x = 3,830.58 × 1,580.62
  4. Step 4: Simplify right side
    2,775.76x = 6,054,691.36
  5. Step 5: Solve for x
    x = 6,054,691.36/2,775.76
  6. Step 6: Final answer
    x = 2,181.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.