Home / 2,813.32-4,219.17-1,057.78

Finding the Fourth Proportional to 2,813.32, 4,219.17 and 1,057.78

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Solution

The fourth proportional to 2,813.32, 4,219.17 and 1,057.78 is: 1,586.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.32 : 4,219.17 = 1,057.78 : x
  2. Step 2: Convert to fraction form
    2,813.32/4,219.17 = 1,057.78/x
  3. Step 3: Cross multiply
    2,813.32x = 4,219.17 × 1,057.78
  4. Step 4: Simplify right side
    2,813.32x = 4,462,953.64
  5. Step 5: Solve for x
    x = 4,462,953.64/2,813.32
  6. Step 6: Final answer
    x = 1,586.37

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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.