Home / 2,158.48-3,211.14-2,150.80

Finding the Fourth Proportional to 2,158.48, 3,211.14 and 2,150.80

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Solution

The fourth proportional to 2,158.48, 3,211.14 and 2,150.80 is: 3,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.48 : 3,211.14 = 2,150.80 : x
  2. Step 2: Convert to fraction form
    2,158.48/3,211.14 = 2,150.80/x
  3. Step 3: Cross multiply
    2,158.48x = 3,211.14 × 2,150.80
  4. Step 4: Simplify right side
    2,158.48x = 6,906,519.91
  5. Step 5: Solve for x
    x = 6,906,519.91/2,158.48
  6. Step 6: Final answer
    x = 3,199.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.