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Finding the Fourth Proportional to 1,872.22, 2,795.13 and 1,431.14

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Solution

The fourth proportional to 1,872.22, 2,795.13 and 1,431.14 is: 2,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.22 : 2,795.13 = 1,431.14 : x
  2. Step 2: Convert to fraction form
    1,872.22/2,795.13 = 1,431.14/x
  3. Step 3: Cross multiply
    1,872.22x = 2,795.13 × 1,431.14
  4. Step 4: Simplify right side
    1,872.22x = 4,000,222.35
  5. Step 5: Solve for x
    x = 4,000,222.35/1,872.22
  6. Step 6: Final answer
    x = 2,136.62

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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.