Home / 2,163.60-3,240.72-2,011.68

Finding the Fourth Proportional to 2,163.60, 3,240.72 and 2,011.68

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Solution

The fourth proportional to 2,163.60, 3,240.72 and 2,011.68 is: 3,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.60 : 3,240.72 = 2,011.68 : x
  2. Step 2: Convert to fraction form
    2,163.60/3,240.72 = 2,011.68/x
  3. Step 3: Cross multiply
    2,163.60x = 3,240.72 × 2,011.68
  4. Step 4: Simplify right side
    2,163.60x = 6,519,291.61
  5. Step 5: Solve for x
    x = 6,519,291.61/2,163.60
  6. Step 6: Final answer
    x = 3,013.17

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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.