Home / 3,154.78-4,732.30-1,074.70

Finding the Fourth Proportional to 3,154.78, 4,732.30 and 1,074.70

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Solution

The fourth proportional to 3,154.78, 4,732.30 and 1,074.70 is: 1,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.78 : 4,732.30 = 1,074.70 : x
  2. Step 2: Convert to fraction form
    3,154.78/4,732.30 = 1,074.70/x
  3. Step 3: Cross multiply
    3,154.78x = 4,732.30 × 1,074.70
  4. Step 4: Simplify right side
    3,154.78x = 5,085,779.15
  5. Step 5: Solve for x
    x = 5,085,779.15/3,154.78
  6. Step 6: Final answer
    x = 1,612.09

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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.