Home / 3,442.78-5,166.37-1,251.30

Finding the Fourth Proportional to 3,442.78, 5,166.37 and 1,251.30

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Solution

The fourth proportional to 3,442.78, 5,166.37 and 1,251.30 is: 1,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.78 : 5,166.37 = 1,251.30 : x
  2. Step 2: Convert to fraction form
    3,442.78/5,166.37 = 1,251.30/x
  3. Step 3: Cross multiply
    3,442.78x = 5,166.37 × 1,251.30
  4. Step 4: Simplify right side
    3,442.78x = 6,464,678.78
  5. Step 5: Solve for x
    x = 6,464,678.78/3,442.78
  6. Step 6: Final answer
    x = 1,877.75

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1.5x scale

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.