Home / 5,125.63-7,070.53-3,107.73

Finding the Fourth Proportional to 5,125.63, 7,070.53 and 3,107.73

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Solution

The fourth proportional to 5,125.63, 7,070.53 and 3,107.73 is: 4,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.63 : 7,070.53 = 3,107.73 : x
  2. Step 2: Convert to fraction form
    5,125.63/7,070.53 = 3,107.73/x
  3. Step 3: Cross multiply
    5,125.63x = 7,070.53 × 3,107.73
  4. Step 4: Simplify right side
    5,125.63x = 21,973,298.20
  5. Step 5: Solve for x
    x = 21,973,298.20/5,125.63
  6. Step 6: Final answer
    x = 4,286.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.