Home / 2,977.22-4,465.88-1,129.21

Finding the Fourth Proportional to 2,977.22, 4,465.88 and 1,129.21

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Solution

The fourth proportional to 2,977.22, 4,465.88 and 1,129.21 is: 1,693.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.22 : 4,465.88 = 1,129.21 : x
  2. Step 2: Convert to fraction form
    2,977.22/4,465.88 = 1,129.21/x
  3. Step 3: Cross multiply
    2,977.22x = 4,465.88 × 1,129.21
  4. Step 4: Simplify right side
    2,977.22x = 5,042,916.35
  5. Step 5: Solve for x
    x = 5,042,916.35/2,977.22
  6. Step 6: Final answer
    x = 1,693.83

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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.