Home / 2,131.43-3,197.14-898.50

Finding the Fourth Proportional to 2,131.43, 3,197.14 and 898.50

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Solution

The fourth proportional to 2,131.43, 3,197.14 and 898.50 is: 1,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.43 : 3,197.14 = 898.50 : x
  2. Step 2: Convert to fraction form
    2,131.43/3,197.14 = 898.50/x
  3. Step 3: Cross multiply
    2,131.43x = 3,197.14 × 898.50
  4. Step 4: Simplify right side
    2,131.43x = 2,872,640.03
  5. Step 5: Solve for x
    x = 2,872,640.03/2,131.43
  6. Step 6: Final answer
    x = 1,347.76

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Double scale
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Similar ratio
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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.