Home / 2,131.48-3,195.46-899.84

Finding the Fourth Proportional to 2,131.48, 3,195.46 and 899.84

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Solution

The fourth proportional to 2,131.48, 3,195.46 and 899.84 is: 1,349.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.48 : 3,195.46 = 899.84 : x
  2. Step 2: Convert to fraction form
    2,131.48/3,195.46 = 899.84/x
  3. Step 3: Cross multiply
    2,131.48x = 3,195.46 × 899.84
  4. Step 4: Simplify right side
    2,131.48x = 2,875,402.73
  5. Step 5: Solve for x
    x = 2,875,402.73/2,131.48
  6. Step 6: Final answer
    x = 1,349.02

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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.