Home / 2,815.76-4,219.56-1,170.26

Finding the Fourth Proportional to 2,815.76, 4,219.56 and 1,170.26

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Solution

The fourth proportional to 2,815.76, 4,219.56 and 1,170.26 is: 1,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.76 : 4,219.56 = 1,170.26 : x
  2. Step 2: Convert to fraction form
    2,815.76/4,219.56 = 1,170.26/x
  3. Step 3: Cross multiply
    2,815.76x = 4,219.56 × 1,170.26
  4. Step 4: Simplify right side
    2,815.76x = 4,937,982.29
  5. Step 5: Solve for x
    x = 4,937,982.29/2,815.76
  6. Step 6: Final answer
    x = 1,753.69

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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.