Home / 7,037.91-9,712.58-3,894.12

Finding the Fourth Proportional to 7,037.91, 9,712.58 and 3,894.12

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Solution

The fourth proportional to 7,037.91, 9,712.58 and 3,894.12 is: 5,374.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,037.91 : 9,712.58 = 3,894.12 : x
  2. Step 2: Convert to fraction form
    7,037.91/9,712.58 = 3,894.12/x
  3. Step 3: Cross multiply
    7,037.91x = 9,712.58 × 3,894.12
  4. Step 4: Simplify right side
    7,037.91x = 37,821,932.56
  5. Step 5: Solve for x
    x = 37,821,932.56/7,037.91
  6. Step 6: Final answer
    x = 5,374.03

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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.