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Finding the Fourth Proportional to 1,473.40, 2,221.27 and 1,473.40

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Solution

The fourth proportional to 1,473.40, 2,221.27 and 1,473.40 is: 2,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.40 : 2,221.27 = 1,473.40 : x
  2. Step 2: Convert to fraction form
    1,473.40/2,221.27 = 1,473.40/x
  3. Step 3: Cross multiply
    1,473.40x = 2,221.27 × 1,473.40
  4. Step 4: Simplify right side
    1,473.40x = 3,272,819.22
  5. Step 5: Solve for x
    x = 3,272,819.22/1,473.40
  6. Step 6: Final answer
    x = 2,221.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.