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Finding the Fourth Proportional to 1,427, 2,136.34 and 1,014.84

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Solution

The fourth proportional to 1,427, 2,136.34 and 1,014.84 is: 1,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427 : 2,136.34 = 1,014.84 : x
  2. Step 2: Convert to fraction form
    1,427/2,136.34 = 1,014.84/x
  3. Step 3: Cross multiply
    1,427x = 2,136.34 × 1,014.84
  4. Step 4: Simplify right side
    1,427x = 2,168,043.29
  5. Step 5: Solve for x
    x = 2,168,043.29/1,427
  6. Step 6: Final answer
    x = 1,519.30

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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.