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Finding the Fourth Proportional to 2,214.40, 3,322.17 and 654.34

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Solution

The fourth proportional to 2,214.40, 3,322.17 and 654.34 is: 981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.40 : 3,322.17 = 654.34 : x
  2. Step 2: Convert to fraction form
    2,214.40/3,322.17 = 654.34/x
  3. Step 3: Cross multiply
    2,214.40x = 3,322.17 × 654.34
  4. Step 4: Simplify right side
    2,214.40x = 2,173,828.72
  5. Step 5: Solve for x
    x = 2,173,828.72/2,214.40
  6. Step 6: Final answer
    x = 981.68

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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.