Home / 3,385.64-5,078.46-1,077.14

Finding the Fourth Proportional to 3,385.64, 5,078.46 and 1,077.14

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Solution

The fourth proportional to 3,385.64, 5,078.46 and 1,077.14 is: 1,615.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.64 : 5,078.46 = 1,077.14 : x
  2. Step 2: Convert to fraction form
    3,385.64/5,078.46 = 1,077.14/x
  3. Step 3: Cross multiply
    3,385.64x = 5,078.46 × 1,077.14
  4. Step 4: Simplify right side
    3,385.64x = 5,470,212.40
  5. Step 5: Solve for x
    x = 5,470,212.40/3,385.64
  6. Step 6: Final answer
    x = 1,615.71

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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.