Home / 2,874.20-4,307.64-1,230.32

Finding the Fourth Proportional to 2,874.20, 4,307.64 and 1,230.32

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Solution

The fourth proportional to 2,874.20, 4,307.64 and 1,230.32 is: 1,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.20 : 4,307.64 = 1,230.32 : x
  2. Step 2: Convert to fraction form
    2,874.20/4,307.64 = 1,230.32/x
  3. Step 3: Cross multiply
    2,874.20x = 4,307.64 × 1,230.32
  4. Step 4: Simplify right side
    2,874.20x = 5,299,775.64
  5. Step 5: Solve for x
    x = 5,299,775.64/2,874.20
  6. Step 6: Final answer
    x = 1,843.91

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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.