Home / 2,140.76-3,206.64-2,114.84

Finding the Fourth Proportional to 2,140.76, 3,206.64 and 2,114.84

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Solution

The fourth proportional to 2,140.76, 3,206.64 and 2,114.84 is: 3,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.76 : 3,206.64 = 2,114.84 : x
  2. Step 2: Convert to fraction form
    2,140.76/3,206.64 = 2,114.84/x
  3. Step 3: Cross multiply
    2,140.76x = 3,206.64 × 2,114.84
  4. Step 4: Simplify right side
    2,140.76x = 6,781,530.54
  5. Step 5: Solve for x
    x = 6,781,530.54/2,140.76
  6. Step 6: Final answer
    x = 3,167.81

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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.