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Finding the Fourth Proportional to 2,887.42, 4,333.02 and 2,136.82

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Solution

The fourth proportional to 2,887.42, 4,333.02 and 2,136.82 is: 3,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.42 : 4,333.02 = 2,136.82 : x
  2. Step 2: Convert to fraction form
    2,887.42/4,333.02 = 2,136.82/x
  3. Step 3: Cross multiply
    2,887.42x = 4,333.02 × 2,136.82
  4. Step 4: Simplify right side
    2,887.42x = 9,258,883.80
  5. Step 5: Solve for x
    x = 9,258,883.80/2,887.42
  6. Step 6: Final answer
    x = 3,206.63

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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.