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Finding the Fourth Proportional to 1,446.40, 2,172.80 and 1,014.40

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Solution

The fourth proportional to 1,446.40, 2,172.80 and 1,014.40 is: 1,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.40 : 2,172.80 = 1,014.40 : x
  2. Step 2: Convert to fraction form
    1,446.40/2,172.80 = 1,014.40/x
  3. Step 3: Cross multiply
    1,446.40x = 2,172.80 × 1,014.40
  4. Step 4: Simplify right side
    1,446.40x = 2,204,088.32
  5. Step 5: Solve for x
    x = 2,204,088.32/1,446.40
  6. Step 6: Final answer
    x = 1,523.84

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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.