Home / 3,452.78-5,178.48-1,260.77

Finding the Fourth Proportional to 3,452.78, 5,178.48 and 1,260.77

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Solution

The fourth proportional to 3,452.78, 5,178.48 and 1,260.77 is: 1,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,452.78 : 5,178.48 = 1,260.77 : x
  2. Step 2: Convert to fraction form
    3,452.78/5,178.48 = 1,260.77/x
  3. Step 3: Cross multiply
    3,452.78x = 5,178.48 × 1,260.77
  4. Step 4: Simplify right side
    3,452.78x = 6,528,848.70
  5. Step 5: Solve for x
    x = 6,528,848.70/3,452.78
  6. Step 6: Final answer
    x = 1,890.90

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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.