Home / 2,630.68-3,626.97-2,156.86

Finding the Fourth Proportional to 2,630.68, 3,626.97 and 2,156.86

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Solution

The fourth proportional to 2,630.68, 3,626.97 and 2,156.86 is: 2,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.68 : 3,626.97 = 2,156.86 : x
  2. Step 2: Convert to fraction form
    2,630.68/3,626.97 = 2,156.86/x
  3. Step 3: Cross multiply
    2,630.68x = 3,626.97 × 2,156.86
  4. Step 4: Simplify right side
    2,630.68x = 7,822,866.51
  5. Step 5: Solve for x
    x = 7,822,866.51/2,630.68
  6. Step 6: Final answer
    x = 2,973.71

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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.