Home / 1,446.20-2,169.60-714.92

Finding the Fourth Proportional to 1,446.20, 2,169.60 and 714.92

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Solution

The fourth proportional to 1,446.20, 2,169.60 and 714.92 is: 1,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.20 : 2,169.60 = 714.92 : x
  2. Step 2: Convert to fraction form
    1,446.20/2,169.60 = 714.92/x
  3. Step 3: Cross multiply
    1,446.20x = 2,169.60 × 714.92
  4. Step 4: Simplify right side
    1,446.20x = 1,551,090.43
  5. Step 5: Solve for x
    x = 1,551,090.43/1,446.20
  6. Step 6: Final answer
    x = 1,072.53

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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.